Letting someone change you is a precious gift and not to be given away to just anyone. You are putting your trust in to a caregiver. If you are ready to do that. The care give can do it in a way that will make you fill wonderful or they can do it in a way that will make you fill bad. So becafull my freand.
Well if you don't have somebody to change you right now, then you should certainly not wait and take care of it yourself, I can't imagine the rash you would get after waiting to find somebody.
There is nothing wrong with looking for somebody who would take this part in your life, but you have to be particular in who you look for. Often you can find other AB's who are happy to exchange diaper changes, you can also look for a caretaker, or if you get married you can inquire if your wife is interested, but don't pressure her into it. Before you are even married, you probably should have already opened up to her at some point about this desire so she can be aware of some of your ambitions if this is something you are hoping to get out of your marriage.