I suggest a remedy, at the cost of revealing a family secret: Buy Philips electric hair clipper!
My son bought one in 1995 and my wife cut his hair free of charge, while he cut my hair for the equivalent of about 50 p.
He went to university, then to military service (one of the last subject to draft) than got a job and moved away.
My wife continued to cut my hair (free of charge) but two years ago she damaged the cutter/comb and the spare was not available.
I cannot remember the exact amount I paid to replace such a precious asset, but it was in the range of £25.
Not one penny to foreign immigrants preaching against booze, ham and miniskirts!