I'm not currently in diapers but I hope to be in them soon because I'm interested and here's how I got interested.
I was on youtube once (like always) Watching gaming videos when I challenged myself to go intot he deep end of youtube without and floaties (see what i did there?). Anyways, I started to view videos based on related video section and I came to some pretty weird things like some dude singing in a really high pitched voice and downing two servings of ramen noodles and a coke with his two dogs.
Anyways, after like an hour of surfing, I came up to an episode of a show i didn't know existed, "My Craziest Obsession." I watched a couple of episodes and came up to people who liked to dress up as a baby and wear diapers and whatnot.
At first I was thinking to myself -that's crazy!- And then I started to think about it, I did some research and web surfing about it and realized I wasn't interested in the whole dressing up as a baby and being taken care of fully like that, but to wear diapers was another thing.
I sampled a pair of Goodnites when my parents weren't home (Yes I do still live with them at 18), and I went in them. I realized how amazing it felt to just go, without having to worry about going to the potty. I realized if I started wearing diapers, I wouldn't have to worry about being in a shopping center, having to go potty, and desperately going store to store looking for bathroom. I wouldn't have any worry because I could just go. The freedom and the not having to worry part is what really got me interested.
I hope to get into diapers soon but I think this was a bit of an odd way to get interested in them.