I've seen quite a few inspirational posters over time that say "Never Grow Up", and I get it, I mean I really do.
I'm the guy who has a bookshelf filled with Muppet toys, and comic books in the bathroom. I recently bought a Lord of the Rings Lego set...just because it's my money and I can, okay! And my principle hobby/passion is playing pretend on stage.
Yeah, like I said, I get it.
But you do need to grow up. At some point in your life, you need to accept responsibility for yourself, and for the people around you. You need to be polite, you need to pay your bills on time, you need to save money, you need to help folks who aren't as lucky as you, you need to do your homework, you need to think before you act, you need to work hard, etc. You HAVE to do all of those things. If you don't, the world will eat you alive.
However... there are things we forget about from childhood, that we lose, that we shouldn't. Kids are passionate. They love the things they love. They want to watch the Lion King 50 times in a row. They will jump up and down and scream with joy because they got what they wanted for Christmas. They will tell you they love you and mean it, 100 percent.
Kids imagine, and play, and dance, and sing, and do all of these things without a filter. They don't care that they won't fit in, or that their clothes don't match or whatever. They just do things because those things are fun and awesome. The most creative people I know are mostly children.
So, I guess that's my thought for the day. DO grow up. But maintain the passion and imagination that you had as a child as you do so.