Yes it's okay to wear diapers for fun.
I like wearing diapers for fun too and I'm 13 years old.
My parents are making me wear diapers which is good because that's what I wanted.
I finally got my parents to force me to wear diapers all the time.
I started wetting my pants and would not go to the toilet.
Finally after 6 months of wetting my pants my parents made me wear diapers full time.
I can fit into Pampers Cruisers size 7 because I'm skinny and I have to wear the Pampers Cruisers size 7 diapers all the time and even too school.
I started school yesterday here and I wear the Pampers Cruisers size 7 diaper to school but at home I have to go around in nothing but the diaper and sometimes a shirt.