Eldest DS is 20. Just finishing an apprenticeship with a guaranteed job at the end of it, and earns a good wage for his age.
He lives at home but acts like he's not part of the family. He doesn't speak to the rest of us unless spoken to. Comes and goes without advance notice so I never know when to cater for him at mealtimes etc. Stays in his room all the time, only comes out for meals (if he's here when they're served). Never helps with any chores. I have laid down ground rules and issued chores but I get fed up of constantly nagging/reminding, often to be told he "can't do it now as going out" and says he'll do it later/tomorrow, but of course he doesn't.
He says he wants to leave home but doesn't seem to be making a sincere effort to move out. He hasn't saved any money over the 3 years he's been working, just blown it all on going out, clothes, recreational drugs :(
On a day to day basis he doesn't cause a lot of trouble apart from his dismissive attitude and leaving mess in the kitchen and bathroom (he doesn't clean or tidy up after himself ever). But if we pull him up on his attitude or not cleaning up after himself, he often loses his temper and storms off. He has on several occasions thrown things at the walls, causing damage.
I did tell him a few months ago that while he's living here he has to follow the family rules, treat others with respect, clean up after himself etc, and if he doesn't like it then he should find somewhere else to live. He got upset and his attitude improved ever so slightly for a while, but he still made no effort to do his assigned chores, and now it seems we're back to square one.
I'm now thinking of giving him a deadline to move out. Is this cruel and will it destroy our relationship permanently? I can just see him interpreting it as his heartless parents unreasonably kicking him out, and since he avoids us most of the time he is generally no trouble, but I'm fed up of living with someone who barely speaks to me yet still expects me to wash up his coffee cups that he dumps by the sink.