I really doubt that was common, nor do I think the child would have much choice in the matter.
No, they don't. Over the centuries, a consensus developed that it was wrong for adults to use children for sexual gratification, even if they persuaded the children to go along with it "voluntarily." Almost everyone agreed that sex with children was wrong, and that wanting sex with children was perverse.
Unfortunately, we appear to be falling back to the past ... or something even worse. The value to society of having children born and raised in marriage-based families used to be so obvious that it didn't have to be mentioned. Now, bringing this up is "hate speech."