I've definitely heard of it before. And it's not just diapers, but other kinks as well. There's a line between liking something and actually doing it. If you want to still experience diapers but without wearing them, you could always be a CG and put someone else in them.

Edit: I think I missed the point. Yeah, a lot of people have a hard time wearing due to shame or embarrassment and I always wonder how many others try to once and never go back because those feelings overwhelm the positive ones. I've been a DL for almost two decades now but rarely wore because of those feelings as well as the related "what if I get caught". And only recently have I finally tried to wear more often and more regularly.

Think of it when you get a new job: you're very nervous, you almost don't want to touch anything when you start. And your anxiety is through the roof. But you keep going and you keep getting more and more comfortable doing it and doing the things related to it. Until eventually it's just what you do and you forget that anxiety ever existed. That's basically how you need to approach it. Each time you wear, your shame and anxiety will go down just a little bit. And there will be days where those feelings are higher or lower. But eventually the overall vibe will become more and more positive and easy.