There are some scenarios where I can see marriage benefiting a woman, but virtually no such scenarios for a man. The only time I’d recommend it is if the man wants kids. Kids stand a better chance with married parents. But for those of us who are blissfully childfree, it seems like a horrible arrangement with lots of cons and zero pros.
Discussion
I think raising children without a marriage certificate is better for the kids because women are not incentivized to leave the marriage and take all the money. Unless they do a prenup beforehand, marriage is actually bad for kids imo.