Child living arrangements for 12 year old

[BrickInAWall]

I have a 12 year old who after divorce decided to stay with dad because he is angry with me due to my new relationship. He quite often puts the phone down on me when we talk and i touch on subjects he doesn’t like, e.g. we have deregistered him from school and are homeschooling him (which is impossible for me to get involved into or supervise as he is not with me). I have enrolled him into online school but he doesn’t like the classes and doesn’t really want to do it. If i start talking about it i get shut out and there is no reaching him as he doesn not answer phone or messages for days afterwards.
Initially me and ex agreed to 50:50 split in care but this is not working and i am worries about my son.
It seems drastic but i could the residency be sorted out and enforced by court as he is 12? Is it advisable to do so? Any thoughts are appreciated.

Honestly at 12 you can’t make a child live with you who doesn’t want too, and it sounds like he is happy with dad.
School is a concern though, is he engaging in any type of education? Why is he home educated?

It was probably not appropriate to introduce a child to the idea of a new relationship when he was still suffering from the divorce. It's understandable he's angry. I'm afraid you can't force living arrangements at this age unless the dad is unfit for some reason (doesn't sound like it). The school is worrying though. If he won't engage then surely he has to go back to mainstream? Is his dad home every day to hone school?

@BrickInAWall

I have a 12 year old who after divorce decided to stay with dad because he is angry with me due to my new relationship. He quite often puts the phone down on me when we talk and i touch on subjects he doesn’t like, e.g. we have deregistered him from school and are homeschooling him (which is impossible for me to get involved into or supervise as he is not with me). I have enrolled him into online school but he doesn’t like the classes and doesn’t really want to do it. If i start talking about it i get shut out and there is no reaching him as he doesn not answer phone or messages for days afterwards. Initially me and ex agreed to 50:50 split in care but this is not working and i am worries about my son. It seems drastic but i could the residency be sorted out and enforced by court as he is 12? Is it advisable to do so? Any thoughts are appreciated.

50:50 split in care not working for who? It seems to be working for your ex and your son, just not for you. School is a worry but probably more because of the homeschooling than the living arrangements.

If you tried to get the childcare varied so you got residency rather than the shared care arrangement, I actually have to say I hope you lose. You really have no right to deny the other parent their 50% of childcare because things aren't working out so well for you.