For student finance?
DS has worked full time on a fairly decent salary for his age and paid keep at home for 3 years. He's now decided University is for him after all and needs to apply for student finance. The guidance says if you've "supported yourself" for 3 years you're an independent student, but it isn't clear what supporting yourself means.
It will make a big difference to what he's entitled to of it's based on household income or his own income. He hasn't cost me anything as such for 3 years and he has contributed financially to runnign the house, but obviously that's not quite the same as being completely independent.
He's 19yo, so doesn't qualify on age.