Looking for some opinions on how to navigate my mum not respecting boundaries. My mum dismisses everything regarding car seats, and just my overall general boundaries. She doesn’t have my daughter often, but today she asked to watch her for a couple of hours which I was happy for her to do as she said she wasn’t using the car. She turned up with the car and we ended up having a heated discussion around the car seat regarding her not respecting boundaries around car seat safety & rear facing. She hasn’t installed anyone in a car seat in about 20 years and her car seat isn’t adjusted properly for my daughter as shes not been in it in over a year. I have a 19 month old. She has encouraged use of no car seats often and doesn’t see the big deal around any of it. I said she wasn’t taking her today unless rear facing and I installed her correctly which I done. We don’t do a lot of screen time but I don’t mind a bit here and there, but i don’t like her especially having a phone. I’ve told my mum this multiple times and she still proceeds to give her the phone and today when I went to pick her up she was watching peppa pig on the tv & had baby shark on the phone. I took the phone off her and she had a tantrum, my mum proceeded to say she’s had it for about an hour. I can look past a lot of things like her having treats there, and not sticking to nap times etc as I know going to your grandparents is fun and you get treated while you’re there, but it’s the constant dismissal of what I say. There’s constant comments too, when I went to go pick her up she said she’s not made a peep all day or even asked for you once, I ignored and she kept saying it. My daughter started to get a bit whingy and she was like she’s only like that cause you’re here she’s been great all day. Just not really sure how to work around it, as my daughter loves her and spending time with her but she just doesn’t listen to a word I say.