Hi everyone, sorry mine is long & tedious too! ...I'm so happy to have come across this thread because I've had issues with my mum too, but they are so subtle that it has been hard to put it into words. Previously I have really looked up to my mum a lot, thought she could do no wrong, etc, and part of that might be down to the fact that she comes across like only she is right. She is nowhere near as controlling as your mum arabella, but I can relate to some of what you say. I think my mum is aware enough of herself to back off, but it doesn't stop her making comments that allow me to know exactly what she thinks. Luckily she also tells me well done etc too.
I think having a baby made me realise that my mum is far from perfect, and that my childhood/my relationship with her as a child was far from perfect. Having a baby makes you think about your childhood and what you would & wouldn't do, and I think in my case I found that there were a lot of hidden resentments in me about my mum. For example, she is always so connected with how dd is feeling, and because dd was always quite clingy & insecure, it really GOT to me that my mum would take that on herself, iykwim, ie not giving dd room to work herself out of it...don't know if I'm making sense. I think I always wonder if that is how she was with me and connect it to my own issues in a way. And, my mum didn't look after dd by herself until pretty late. I'm a single mum and was desperate for some time to myself in dd's babyhood but (and I know partly cos she was breastfed it must've been a scary idea) my mum refused, in a very passive avoiding sort of way. So, I'm the opposite to a couple of you whose parents completely take over and disappear with the grandchildren - I'd love that to happen more often!! At the same time I HATE having to depend on my parents for anything cos I want to be a fully independent and grown up person! (Which may be why it doesn't happen as often as I'd like, cos I hate having to ask for help!)
Also resonated with something someone else said about their mum wanting to spend time only with the grandchildren. I feel like that sometimes. My time with my parents has completely changed, it's dd focused all the time. We stay over nearly once a week, and the evening I'm there they disappear to the computers or whatever, no social time with me unless someone cooks dinner for us all... my sister & her boyfriend go over frequently and have dinner & socialise etc, but as I said, my time with them is very dd focused.
But I have to say, I always feel very guilty feeling grouchy about them because generally they have been fantastic... In conclusion, Arabella, I don't think you are being childish! Your parents sounds insufferable compared to mine! I would say, though, that you just have to let it wash over you and remind yourself: it IS my decision, my children, and not let their opinions bother you. It's about letting go of your upbringing and learning to trust yourself and not keep referring to your parents' way of doing things. I think I am aware of how imbedded that sort of thing is in me, I think I am always now, sometimes unconsciously, thinking of what my parents would think of a certain thing and then deciding whether or not to discard it.
I would also say that it is okay for your parents do stuff that you don't think is okay. You can't expect everyone in your dcs' lives to do everything your way. For example, my mum gives my dd more sweet things etc than I would myself, but I decide not to mind that as she is her grandmother and it is only when we see her... On the flip side, my parents never had a TV and dd watches a fair amount at home - my mum frequently tuts about that! The vegetarian thing is tricky though.