Are barbers just wasting time (and our money)?

Spent many a half hour in the chair whilst some hair is cut followed a few minutes later when more is taken off the same hair and so on. Endless fussing and pruning. Went to Mrs. Slamdoor’s hairdresser who did as good a job in half the time working from home (but about £1.50 a minute). Are we just paying for faffing?