Come on guys, lets be fair.
When i was a little kid like bilster, i wanted to be all "grown up" and "mature" so i tried to be all sensible and if anyone had a laugh or anything i'd tell them how "Childish" they were cause they weren't all "mature" Like me.
Don't worry bilster, you'll grow out of it, and maybe get a sense of humour at the same time.
I grew out of it when i was about 10, but don't worry. You're probably just a late bloomer.