You can’t do anything as a hobby.
Like if they see you lifting weights, they’re like “You’re going to be a very successful power lifter when you grow up.”,
or they see you reading a book about hamsters,
“You’re going to study zoology and eventually work up your way to owning your own zoo. Correct?”,
or if you’re running, “You’re going to be a very successful distance runner, right?”,
they see you reading WebMD, “You’re going to be a successful neurosurgeon like your uncle”,
they see that you hit a big growth spurt, “You’re going to be an NBA All star. Am I right?”,
You say “I like puppies!” and suddenly they give you like an entire shelf of books on dogs.