Are people who use this mod for just the how-they're-related bits finding it to work?
Viewing post in [unsupported] riv_rel - genealogy mod for sims 4 comments
I myself do. Tho you would have to play with Neighborhood Stories turned off (specifically pregnancy and adoption) in order for this mod to work. Also don't expect that Sims with custom pronouns would be gendered correctly with it. If you're one of those who prefer MCCC's story progression over EA's and can get over your Sims being misgendered, you're good. For now at least, future updates may change it easily.