Yep i have worn to theme parks back then when i was 16 , i was a bedwetter and i was traveling international to west coast USA . Diapers are mandatory for me as i tend to wet myself when asleep so not to mention an international flight plus transit last more than 24 hours so i wore diapers almost 24/7 during my trip , i would untape my diaper to pee but would tape them back on for the plane journey. When we arrived and reached the hotel we unloaded our luggage and head out to the park which is some distance away and my mom told me to wear a diaper just in case which i did , i also brought a couple of spare diapers with me as well .
I did however wet my diaper on 2 occasion though , 1 was when the lines were long and we didn't want to leave the line to requeue so i just use my diaper , my mom knew and she told me to use it since im already wearing it . The other was when i rode a thrill ride , i wasn't a fan of thrill rides like roller coaster etc but was peer pressured into riding it , it was only after the ride i realized i wet my diaper . It was embarrassing though when i was wearing it at the theme park as there's a group behind us overheard the conversation about my diaper and worst of all there were guys and girls about my age were giggling at me too , i had to endure the humiliation till after the ride when we go our separate ways . My mom even made small talk with the family in front of us who also overheard that i wear diapers , she asked how old i was and my mom told her im 16 and was having issues , the family of 4 was ok and thought that me being in diapers at a theme park was kind of a good idea as the lines tend to get very long with long waiting times .