Nothing. It’s just an odd question because most people don’t see or understand how someone could be interested in this. They assume it’s something sexual or otherwise kinky. I think it’s just an obscure preference and people are once again forgetting that this is No Stupid Questions…
Genuinely, can we stop downvoting OP’s comments and post? No matter how little you can relate to this, it’s not justified to downvote someone not understanding why others find this weird. My god, this is No Stupid Questions, the last place where we should punish someone for confessing something that is important for them!
Be humane. Treat other people’s struggles with respect.