Being too liberal can lead to "things that happen", like the possilbitiy of marrying your half sister or half brother, that is the man that was your mother's spouse, once, either common law, or legal ran off and . . . oops how about incest, which is against the laws of most civilitzed nations. The "shtuki", the" unclaimed" offspring of a woman whose partner in . . . refuses to claim paternity, can continue "begatting" and a young man or a young woman can discover they share the same father--embarassing, no? It's also against the law in most nations. Things ain't so simple as they seem, so that erstwhile quick fixes that the some pious liberal fools suggest can create situations that make people's lives more difficult than they imagined.
U.S. confirms ISIS computer expert killed in air strike (Reuters)
from the article: Untying the knot: Rethinking the Israeli rabbinate's laws on marriage