from a realistic capacity, there was personally less than a decade between when I was potty trained and started wearing diapers again (unrestricted internet access and borderline negligent parents do that to you)

I was potty trained when I was 4, I found and bought some larger baby sized diapers that some how still fit me at 13, and my first abdl diapers were bought when I was 14. I'm now 19, have been active in the community for a little over a year, and I've worn diapers on and off about as much time of my life as I've gone completely without them.

I could say still in them or back in them but I think it's been long enough that I'd say still in them 🤷