Paul

£15 an hour, on what planet ?

Its like the old nonsense of the average uk salery being £29,600.
No one in my family (except me) earns anywhere near that per year.

I always like the example given to me.
In a room of 10 people, the average monthly pay was £1,450.
So they were all paid quite well, right ?
Wrong ... 9 were paid just £500 a month, the other got £10,000.
Averages are pretty meaningless.

A minimum so high would would drive many out of business, as they could never afford it.
The rest would have to raise prices to the point where people could not afford them any more.