Re: Not getting Adopt as Caregiver Option (PS4)
I agree that the step parent feature needs attention.
For me, Adopt as Caregiver pops up in the Friendly conversation options once the friendship bar is above halfway, so once they have a really good relationship. It also only pops up on your home lot for some reason. It's appeared for my Sims once they all moved into the lot together, then greeted each other and built their friendship through conversation. Then it appeared as an interaction.
If that's not happening then it may be a bug. You play on console too don't you as we're both on the broken controls thread.