Yeah man, I talked about it before. The UK isn't all tea and crumpets, meth is actually a popular drug now and its seen as "cool" by people my age.
Its probably related to the lack of good weed available. Theres a history of british dealers lacing their shit with fiberglass.
lol its real, multiple people at my secondary school smoked laced fibreglass weed, shit destroys your lungs like smoking asbestos. One girl even went to hospital over it when she was 15 or 16 and child protective services started monitoring the family cuz she smoked weed.