Back story: DB recently got married and is living with his wife (DSIL) at my parents' until they save up enough to buy a place. Before they got married, DD (just turned 3) used to visit almost everyday and it was essentially her second home. My DF and DD are very close and have a lovely relationship. She is very comfortable at her grandparents' and is generally well behaved. We visit less now DB is married just because we wanted DSIL to settle in and although my parents were happy to see DD daily, we can imagine DSIL might want some more peace and quiet than that!
The issue: I have noticed DB and DSIL telling DD off for things I wouldn't ordinarily tell her off for.
I feel like it's mostly DSIL's influence as DB wasn't like this before. Things DD has been told off for that I would let go:
- DD was playing and rolling around on the carpet with her cousin (DC of DSis). DN is 7 months old so he didn't get told off but DSIL said "Sarah, are you being a bit naughty on the carpet, can you stop laying on the carpet now please". I didn't know what to say in the moment so just let it go.
- DD mispronounced DSis' name when she was very young (DSis is called Hannah and DD calls her Nanna). DSis likes being called it and it stuck. But DSIL said to DD that it was rude and she should call DSis "Aunty". DSis told DSIL that it was OK and that's what DD has always called her.
- DD was in paddling pool that had a little water gun attachment which projects water a very tiny distance, maybe 10cm at the most. The adults were sitting around the pool (maybe 1.5 metres away) on garden chairs. DD was facing us (myself and DSIL) and joking she's going to get us wet. DSIL said "No, that's naughty Sarah". I said that DD could squirt at her Dad instead and DSIL doesn't want to be squirted at.
- We speak a language at home where the word DSIL should be called by DD sounds a lot like "mummy". DD calls me mummy and finds it confusing to call DSIL mummy and will call DSIL by her name sometimes. DSIL always corrects her and has suggested DD call me something else like "mum". This has been reinforced by my DM as she is doing her best to make DSIL feel at home.
Any advice on how to stop DSIL from being so officious is hugely appreciated