I always thought the breeding system--you know, where MC gets shitty cheat where the more kids/wives he has, the more power/rewards he gets--would be more prevalent, but I guess that kind of emotionless breeding isn't as popular as it is in a repressed society on the other side of the firewall; so smut lovers are actually rather romantic, if in a twisted sort of way. Or English smut just don't like kids as much, lmao