My appointment always takes a minimum of 3 hours and in that time my hairdresser will have at least another 4 customers. The shop is quite small so no way can they all keep a safe distance
I’m really surprised at that. Are you sure they haven’t made any amendments to the number of clients they book in at a time?
I haven’t been yet unfortunately but certainly prior to this recent lockdown my salon made quite a few adjustments to limit the number of clients in at any one time. They reduced the number of stylists working each shift so fewer clients in and I don’t think they had any assistants (so one person washes, coloured and cut your hair).