This is how we treat our 19 year old.
He doesn't have a job, they are non-existent here, plus he is a student, so he doesn't get home until gone five, so after tea, homework/revision he has maybe a couple of hours until he goes to bed. If he did have a job, we wouldn't take money from him, I don't see children as lodgers to earn you money.
If there is something specific he wants that he doesn't really need, like ben and jerrys ice cream that he is addicted to, then he can use his allowance to buy that.
He doesn't have a bedtime, but once someone is in bed you have to be quiet, he can stay up as long as he wants, if he is a zombie when his alarm goes off, then its his fault and he can't moan.
He does have to be home at a certain time, we don't want to be woken up in the middle of the night, so he has to either be at home by 12:30 otherwise he can sling his hook until morning.
He doesn't have to do any housework, my wife doesn't let anyone do it as its never good enough or done in the exact way that she likes :rollseyes:mhis room is his own responsibility, if he wants to live in a stink pit, then he can happily do it. He does have to tidy after himself though, he can't leave his things all over the house and he is responsible for the mess of any friends he has over.
Internet and things, we have a family computer and he has a laptop, he can use it whenever he wants, unless someone has to do something on the family comp and someone else needs a computer for homework, then he has to surrender his until all homework is finished. He isn't that internety though, if we tried to remove his play station however....
With school, hes an adult, if he wants to miss a lecture, not bother with coursework, fine go ahead, I don't see the point in babying him until everything is done, he needs to use his own head and find a way to motivate himself. Yes he has majorly messed up before, but once he realised oh, I have to actually go to school and listen, he has been okay. We would never say to him, you'll never achieve this or that, I think that is very cruel who ever is saying it, even if you think something is unlikely, I think you should always support your children and help them achieve it.
He is moving out in September (going to uni), now I don't know what it is like where you live, but he is going to live in a one bed flat, there are two of them, if they were both working full time, their joint wages alone would never cover rent, never mind bills, council tax, food etc. For him to be able to live elsewhere we have to help out financially and so does his boyfriends parents, otherwise they wouldn't be able to go to uni.
There are certain rules he has to stick to, no swearing in front of the younger ones/when they are in the house, if he has sex in the house its to be at night and not to be heard, he is only allowed to do that as they've been together four years now and he isn't the kind of person to treat sex as just a bit of fun. He has to sleep at home on a school night and on his own, Jack and no sleep is not fun to be around.
I do think rules should be negotiated between parents and children, I think its really important to come to a balance that suits you all, instead of just being like, this happens and thats it. We are quite lenient with Jackson, at least I think we are, but we know we can trust him and that he respects us and the kids, he knows his rules are based around his trust as well, he if carries on nothing changes, if he takes advantage, he is the one that gets the hard end of the bargain.
I think you do need to sit down with your mum and talk things through, but I don't think you should just moan about how rubbish everything is, all that will do is fuel your anger and get you nowhere. Yeah, our parents get on our nerves sometimes, but kids are annoying as well.