[quote lenaperkins]@Mousehole10
Why can't you discipline your own child?
How old are your kids out of interest? And same question for everyone else who gave iterations of 'ground them' etc.
Do you have any tips and tricks on how to keep two 6ft 7 boys ages 17 and 19 in? Y'know without tying them up, which apparently is illegal. Asking for a friend and all that. I really think a lot of Mumsnet people are clueless when it comes to older teens especially those with and and adhd etc.
Unless you're willing to actually chuck them out there is zero you can do apart from attempt to appeal to their better natures. And as narcissism levels are often high in this age group, they only really think of themselves.
And op - you have my every sympathy 
The truth is there is very little you can do. No magic that will transform them into the kind of kids who will listen.
I've been trawling through the old Teenagers threads - especially the posts by a lady called MaryZ, although sadly, many are now deleted, which makes me wonder what happened to these teens. Hope they grew out of this
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Appreciate the empathy.
I have stopped her allowance (she obviously has been inspired to find ‘alternative income’). Stopping her phone access would trigger a huge anxiety (long story - she’s been having therapy for this)
She does have ADHD but has been refusing to take her medication.
At 16/17 patents are legally responsible but cannot stop children leaving the home/doing whatever they want. If the children of that age are abusive to the patents there is no law to support parents.
She is not a bad kid. I love her to bits. However, she does not ever seem willing to take responsibility for her actions - it’s always someone else’s fault/not her fault because of something else. Every strategy which works with her sister who has grown into a thoroughly delightful and responsible young woman (a year and a half older than her) fails miserably with her. As sisters they get on brilliantly and love each other to bits, but even her older sister is worried and frustrated at her ‘entitled attitude’ (her words).
Everyone is struggling with this pandemic but it doesn’t give anyone license to do whatever they want with no regard for others. I might suggest she chats to my friend who is an icu nurse with the nhs...
I just want her to understand that her choices and actions have an impact.