I'm an adult and I love wearing diapers for both the convenience and fun part of it.
Wearing a wet diaper even in public is a great feeling and I don't have to ever go to a nasty public toilet and I no longer even use the toilet at home.
I wear diapers 24/7 and would never go back to using the toilet ever again.
I use my diapers for both pee and poop and love the feeling of both.
I buy diapers from Northshorecare and Abuniverse as well and they have some great quality diapers that hold up good to wetting all day.
I use Northshore supremes and Abuniverse Little Pawz, Super Dry Kids etc and they're all good diapers.
Underwear doesn't feel good to me and diapers do feel good to me and I would never want to wear regular underwear again.
I can afford the diapers to wear 24/7 so I have no problem paying for it and it's well worth the money I spend on the diapers for both the convenience and my happiness and fun I get from wearing diapers.
Another benefit of wearing diapers is I don't have to leave my bed to pee in the middle of the night and can just wake up, wet the diaper and then go back to sleep.