I am 13 years old and i my mom has me wear a diaper on all road trips of an hour or more. she started this three years ago when i was 10(i know a little old to be having accidents). She did this because we were driving to the beach(about 1hr and 45 mins) and i wet myself because i couldn't hold it. If your child is the kind of child who would wet themselves, then i say go for it. I know there have been times in the past where i was thankful i was wearing one or i could have had wet pants. They don't have to wear the diaper, it's just for emergencies.Trust me, wet pants aren't fun.