DS 17 life style

[Claybury]

DS is in year 12. He's doing 4 subjects at AS but wants to drop one already as he's not getting on well with it.
His life style is beginning to wind us up. He does literally nothing else other than school work and party and sleep. No sport, no interests, no Saturday job, (he has a v small babysitting job)- a typical Saturday he gets up at 11 or12 does a bit of revision then goes out to see mates, often smoking weed. Comes in at anytime between 11 and 2 am. He thinks he needs 12 hours sleep a night.

He did well in his GCSE's with moderate effort but I suspect his academic will start deteriorating now as he is not raising his game.
Is it too much to expect some hobbies / help with chores at this age?

No, it's not too much to expect help with chores. Hobbies are trickier because socialising is his hobby.

How does he get money for weed and socialising if he doesn't have a proper job and doesn't help around the house?

Yes he should help with chores but apart from the weed I can't see anything wrong.

And my experience of teenage boys is they do need that much sleep!

Chores and hobbies are two different things.
I would expect some element of chores from my year 12 (though not the amount normally prescribed on MN).
Hobbies are not compulsory though.
The weed is the big problem he will not get those AS levels with that pattern of behaviour. Does he have mocks this month? They should give a clear picture of how he is likely to do in the real AS.
My DS would easily manage 12 hours sleep. He never goes out and is revising heavily for mocks. He doesn't have hobbies unless you count gaming .

Sounds very much like my 16.5 DS.....if he doesn't do the simple chores I ask....no pocket money....

Sounds just like my DS in year 12. Completely selfish, does what he wants when he wants and does not see why that should change. Can be all sweetness and light when he wants something though. If I ask him to sweep the leaves off he drive you would think I had asked him to paint the house, the fuss he makes.

He does have a couple of interests, gaming and shooting. Does not want to get a job as they are all crap and boring.

I am told it does pass and it is their brain rewiring. Can not make them change, just have to wait and set some basic house rules.