Literally Simply Fun
This game really does make sense about life.
We all have a certain amount of time in life to make the best of things.
It's hard to master every skill in this but isn't it like that in real life too? We learn easier when we're younger so that's why in the game, we move faster so it's easier to get all the skills. When you get older, things get harder both socially and emotionally; represented by the slowing down of the person you control.
We can't be wonderful at everything but we can have fun doing it. I had fun playing this game but I didn't master everything.