Don, you are very knowledgeable!!! Every one of your posts is very impressive !
I have thought about it, actually. My parents did too, a long while ago around my age of 12 or 13 when they found out. They (I don't believe) know I'm still into it.
My girlfriend puts it this way, it isn't harming anyone and as long as it continues not to where is the problem (except the social taboo).
I will admit though, I tend to shun the idea after any sexual encounter, and I usually want nothing to do with them. Which I will admit, confuses me haha.