DH has an older child with his ex who is 11 (12 soon).
They have recently started being allowed to go out after school with friends by themselves until tea time.
Part of the agreement between DH and SS was that he has an app on his phone that allows us to see where he is. DH pays for said phone.
I am also on this app as I often am the only adult at home until DH gets back from work so technically the one responsible for SS during that time.
Contact is 50:50.
We have had quite a few issues in the past of DHs ex saying things like I'm not his mum, he shouldn't be left with me to he looked after (moreso when he was a bit younger and actually needed more looking after), however I've always just tried to be as involved as DH is happy with given he is equally his sons parent and we work well together as a team for our kids (ours together and SS). Me and SS get along well.
Anyway, the latest thing is she is unhappy that I have access to SS's location because of the usual "I'm not his parent" and so on and she apparently doesn't want me being able to see what they are doing when she has SS. She's fine with DH having the app but not me.
Said app can be switched on and off if needs be so no reason why she can't just turn it off when he's with her.
We have decided to just keep ignoring this much to her frustration. Imo DH is SS's dad and if he wants me to have access given I am sharing some responsibility for SS's care some evenings then that's up to him as his dad. If he wants to be able to check on SS's location during HIS contact time that is ultimately up to him and between him and SS. His mum can make her own decisions on her time.
Honestly I just find the whole thing very petty and stupid. Are we unreasonable to just not engage with this nonsense and to continue to ignore (fwiw DH has said already he won't be removing me). She has tried deleting the app in the past but DH just re adds it again.