18 and into a houseshare as was sick of my parents trying to use me as an unpaid nanny/housekeeper to my 2 much younger siblings.
Best thing I ever did;actually wish I'd done it at 16:I could afforded it on my wages from my part time job at the time and it would have stopped my parents from taking a chunk from my weekly wages even though they got money for me being in full time education.
It wasn't uncommon where I lived to be put out of the home between 16-18;I know someone who let their DS's friend stay with them for abit as the pair of them were going into the forces and had a short gap of a month or so between finishing education and their start date and the friends parents put him out on his last day at school saying they'd no longer get any CB/TC for him and they weren't paying for him anymore.