Why live this lifestyle if you aren't going to raise the kids under one family unit? I didn't make the caption /clip

I know sol was very young here (4), but Meri definitely took that as Robyn saying she wasn't a good enough mom or safe enough with her son to be trusted. I didn't write the caption, I don't agree Meri was dangerous or slamming doors was an issue (god they needed some way to let aggression out bc they never spoke about anything), but I just wonder why share a husband and say the best part is being one family unit if your kids are your kids and no one else's? Aren't you supposed to kind of have 4 moms in this scenario? The worst thing that will happen is Meri has to call you during the night and comfort your child - which would have bonded them and been very sweet. Maybe Meri would have come back and laughed saying "you're right he isn't ready for this yet"... but it definitely wouldn't have harmed him or been something unsafe for him. What do you guys think?