Sure. But don't call Star Trek a kid's show when you watch Adventure Time and Regular Show.
It's not so much Star Trek that is the kid's show as it is the stereotype of it's fans being 40-something man-children that still live with their parents. That stereotype creates a stigma for Star Trek that only people who haven't matured properly watch it.
Now, I'm not saying I believe in that stereotype, but there are a lot of people who do.