D
Deleted member 848
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why should that be necessary? no such provision or prerequisite is required for any other type of marriage
I think most legal systems (you would know this 378347893x better than myself) are designed to protect citizens of a given state.
For example, incest is illegal because it tends to maximize genetic defects of their respective offspring.
If polygamy is shown to have very negative consequences on any of the partners or the kids on a CONSISTENT, mostly-frequent basis, then I think that the legal system could designate them as illegal.