Why is it so taboo to date or be attracted to a “step” family member?

Anonymous
This is an unpopular opinion but I don’t see anything wrong with dating a stepcousin, stepbrother, or stepsister. It’s not like you’re blood related. I understand the cons of it. It’s extremely awkward at family dinner’s and your parents are married. What do you think?
There’s nothing wrong
Sweet home Alabama
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Why is it so taboo to date or be attracted to a “step” family member?
5 Opinion