Have name changed for this as feel like a shit mum.
Basically she never really gave it up as when we tried to ween her off it at 6mo we were living with dm who refused to put up with dd's tantrums in the night and would sneakily give it back.
This carried on all throughout dd's childhood as we only stopped living with dm when dd was 9. I've always tried to take it but dd would just buy new ones if we took them.
When dd was around 11 I switched approach and would get really angry at her when she would suck her dummy. She actually managed to fool us she'd stopped around 12yo whilst she was would sneakily suck at night/alone.
She's a vv cool teen, goes out on the weekend, is in with the cool kids at school who all drink, some smoke etc and would never let any of her friends find out. I'm trying to convince her to stop but she says it's not worth it and isn't causing anyone any harm (she's miraculously avoided braces!) and has even got to the point where she snapped and told me to 'mind my own fucking business'!
Sorry for the long post, just wanted to explain. Looking for advice and reassurance that I'm not a shit mum (although reckon I am!). Any ideas on how I can get her to quit?