Okay, everyone needs to go at their own pace. Have you thought about getting other baby stuff too, like pacifiers, bottles, etc. When you do finally try a real ABDL diaper, I can’t recommended Adult baby universe (ABU) enough. They’re a little pricey, but they’re fantastic quality.
Well accidents do happen.
I know I’ve had more than one poopy “accident” recently. Besides, they are diapers after all, even if they are for big boys.
Since they are pull ups, you don’t have to worry about “having accidents”. You can still pull them up and down though; you can pretend you’re a big kid in potty training again.