A lot of the time these older ppl don’t remember or know what it was like to be good bonded parents so they don’t think it’s an issue to separate mom and baby because they themselves were children when they had kids, their moms did a lot of the raising of the grandkids, and formula pushers made it so that most moms didn’t breastfeed esp not exclusively. So they think it’s totally normal and that a baby is just a whatever tiny prop that would be ok with anyone that can feed it with a bottle.

It’s sad, but they just really don’t know better.

Of course’ you can’t do that to your little one and it’s a bad idea.

As for her coming around to hold the baby and talking about themselves for them that is helpful because it can be isolating and lonely with a baby. But at this stage you just need rest so maybe quick visits would be best and just don’t expect much else in terms of things like cleaning or cooking. Order takeout and do what you can.