I also have relatives who are doctors, and I always admired them, but I never really thought about becoming one. In my case, I think I was limiting myself when I was younger, thinking things like, "I can't do this," or, "That dream is too ambitious and impossible." But I always thought, "I'd like a job that involves interacting with people," and when I was in elementary school, I wanted to be a school teacher.

You're observing even the smallest details so well. That's amazing! It's also very important for doctors to examine their patients closely. Especially when veterinarians and pediatricians examine animals or babies, they need to observe more closely because the patients cannot speak.
I'm sure you have had many realizations and discoveries while researching crayfish.

That's an amazing discovery. You really love crayfish, Kita-san. I think it's very important to fall in love with something and have the experience of working on it with passion. It's one thing in terms of character development, but humans are driven in large part by curiosity, so I think the interest in "I wonder what will happen?" leads to what you want to be in the future, what research you want to do, and so on, and leads to the future. It doesn't matter what you like, what you're interested in, or what the entry point is, it's sure to help you expand your world from there.

I fell in love with choral singing after attending a choral festival in junior high school, and was active in the Green Harmony Choir at Aoyama Gakuin University. I still sing in the chorus. It's a lot of fun. Being in a community that is different from the workplace or work connections helps me change my mood, and it gives me strength because it's something I love. I think I'm able to maintain a balance by having both time to work and think about my patients, and time to forget about work and immerse myself in my hobbies, like the two wheels of a car. I think that if you only focus on work, your perspective will inevitably become narrow.
So, regardless of whether it will lead to work or not, I think that trying hard at anything will help you in the future. Just like developing territory in a game, I recommend that you try various things as a child to broaden the scope of your interests. Once you have broadened your scope to a certain extent, you will probably want depth as well as breadth, so you should dig deeper into the things you like. It's the same in work. If you are a doctor, you will initially aspire to be an all-round doctor who can treat any symptoms, but you should not only have a wide range of knowledge, but also delve deeper, for example, in emergency medicine, you may want to specialize in burns, or you may want to master suturing because you are interested in surgery. If you do that, I think you will be able to strike a good balance.

Up until then I had only ever seen the examination rooms, so I saw that there were a lot of machines I had never seen before behind the scenes, and I realized that there are a lot of people working in places that are not normally visible.

Do you ever have trouble making a decision?

Yes, I understand.

I have been in the rugby club since I was in the third grade, and I am currently the vice captain. How can we create a good team?

In the elementary school, there is a "partner system"* where first graders and sixth graders are paired up to play together during recess and go on field trips. When I was in first grade, my partner was kind and thoughtful of me, and was like a servant leader. Now that I'm in sixth grade, I have fun playing with my first grade partner every day, and I've come to like the younger students too.

*Partner System: After entering the school, first graders are paired with second and sixth graders, who are called "partners." Their partners spend class time and breaks together, eat lunch together, and become like big brothers and big sisters at school.

The more experience you have, the wider your interests become, and the more you start to worry. I think that when you become a junior high school student, the number of things you like will increase. However, it's great to have so many things you want to try, so I think it's better to worry about this and that rather than deciding on something at this point. As you grow up, you will be able to narrow down the various things you have in mind, thinking, "This isn't quite right" or "This isn't for me."
Dreams don't just come out of nowhere, but are something that are close to us. As Dr. William Osler, a Canadian physician who is known as the father of medical education, famously said, "The first step to success in any profession is to be interested in it," dreams are born from what you are interested in. The time when you realize this varies from person to person, so don't worry. I had suppressed my desire to become a doctor since I was a child, but after graduating from Aoyama Gakuin University and working at a company, it started to grow and I decided to go into medicine. That's one way of life.

I think it's important not to give up. If you decide from the start that "I can't do it!", then it's all over. Even if you hit a wall, if you think about it carefully overnight, you might come up with a different method, such as "Maybe I should think about it this way." Believe in yourself, and cherish and nurture the curiosity you have now, and any new interests you may encounter in your life.