Can you pick even a single person that will agree with you on everything? You could be around 10 if your identical twins and there’d still be conflict.

Why is it more „natural” if the school does the picking? Besides, parents can’t command anyone to join. It’s not The Truman Show.

Is marriage not “real life” because you chose your partner? Does you choosing prevent disagreement, struggle, pain and growth? I don’t think so.