Yes, in my childhood shops were closed on Sundays and on Christmas Day and New Year's Day, some on 2nd January as well, but Boxing Day was not a public holiday in Scotland at that time, nor was Good Friday.
In Denmark until the late 1960s shops closed at 12 noon on Saturdays, were closed on Christmas Day and the 26th December, and on New Year's Day. On Christmas Eve, they closed at 2 p.m. instead of the normal closing time of 5.30 p.m and on New Year's Eve at 4 p.m. Good Friday everything was closed, as on Easter Sunday and Monday.
Restaurants could serve food on Maundy Thursday and Good Friday, but not play dance music - night clubs, theatres and the circus were closed.
All that has changed now, and the young generation of my family cannot believe it possible to live without shops being open on Sundays!