We can't have it all or know it all. We are humans and our level of inquisitiveness differs.
While some see themselves getting into this and that and many more in the case of Smallsteps, others just stick to two things.
I believe there is nothing like "too" much. And in the case of people who are flexible in going from one thing to another, they get to know different things which always comes in handy.
Let's just all do whatever makes us happy and any other things that come our way. We don't know where life will take us tomorrow.
It is funny you should say, as while I don't know much, I can have a discussion with people on pretty much any topic :D
That's because you know different things just like how your daughter does too.