Just an update
Seems dear old dad here wasn't told the truth after all . Very disappointing/ed
But would still seek out any info again for him and probably will next time.

Mind you when I was that age and being part of a peer group that wasn't just out for the individual self we looked after each other and still do to some extent. But we knew when enough was enough and we also knew when it was time to quit.
Seeing what it has done to friends and family who have just continued is so sad it is not funny,watching families torn apart just for a joint is ridiculous.
So once again thank you for the info and I will probably be asking again .
But