That's just what I'm saying though - if £50 ($65?) is still considered excessive value for a single note, it's perhaps a reflection on the relative wealth of Britons. I'm British but have been expatriated since early 2000s
Alternatively it can be a shift to cashless transactions for a bit larger sums.
No, we would usually take/be given a stack of twenties. If it’s too much to be in that then it would be a cheque or bank transfer. We’ve paid most handymen recently by agreeing to transfer money later.