It's not illegal and a 6 year age difference is not crazy but at the age of 22 and 16, it's pretty weird.
He's either meant to be at uni, finished uni or he, at least, should have a job. What surprises me is that in cases like this are stigmatised whereas if it were a 40 and 46 year old, it wouldnt be, despite having the same age gap. Where at 16 you wouldn't typically class such a person as being mature even if you don't know them.
And adventure leads to so much it becomes very sexy interlectual and fun.
Take it from me im 56 and she a very mature 22 yr old. He is still that charming man I got to know but now he is sick and wick and she has to take care of him.
He's either meant to be at uni, finished uni or he, at least, should have a job.