Yes I have worn diapers to festivals and theme parks.
I've also seen older kids wearing diapers to theme parks and festivals and I even saw a boy around 8 years old getting his diaper changed on the ground at a car show before.
He looked very happy and was laying there on his tablet while his dad changed his diaper.
He was wearing a Huggies Little Movers Diaper and he was left without his shorts on because it was hot and his shorts were wet.
I so wished I was him wearing just the diaper and having my dad change my diaper out in the open like that.
I wear diapers everywhere I go now because I no longer use the toilet.
Wearing diapers is much better than using a toilet because the diaper can be used as a toilet and you can pee or poop anywhere you are.
When you're not wearing a diaper and you need to pee or poop you either need to find a toilet, pee your pants or poop your pants or find somewhere to pee or poop outside.
Or you have to stop what you're doing and run into the house to go to the toilet.
When you're wearing diapers and need to go pee or poop all you have to do is let the poop out into the diaper or let the pee out into the diaper and go back to what you're doing or continue doing what you're doing.
For example when I'm out shopping and need to pee or poop I just pee and poop the diaper and go on about my shopping and then change the diaper later.
Or I can be outside playing and just pee or poop.
I no longer use the toilet and wear diapers full time now.
I'm an adult baby diaper lover that will play as a toddler, drink from baby bottles, suck pacifiers and play outside in my backyard in just my diapers when it's warm outside.
Diapers are also more comfortable and more sanitary than public toilets and wearing underwear.