On the other hand, allowing people to migrate from marriage to marriage lets them create lifelong bonds that actually help them when their first partner turns o

On the other hand, allowing people to migrate from marriage to marriage lets them create lifelong bonds that actually help them when their first partner turns out to be callous and uncaring. And there's nothing forcing people to migrate if they're happy with their current community. It's true that the old system was better for some people - e.g., callous and uncaring partners got to have someone obligated to keep taking care of them. I suppose it's a tradeoff.