I recall; to some degree, many years ago when downtown on a Wednesday one would find a good portion of the shops closed at noon. It wasn't odd, it didn't seem out of the question, it was just the way it was.
Just this past Monday I was downtown and found many of the shops closed for the day. My first thought was that somehow I was confused and had not paid attention to what day it was. Then as I checked a store schedule on their door, it came to me it was in fact Monday.
I understand perhaps Mondays are not a very busy day and especially when most shops are now open on Sundays. I don't blame shops one bit. If Mondays are in fact a very slow day that would in turn make for very long hours for those working. A busy day has a tendency to go by very quickly and a slow day passes very slowly; that for just about any field of work.
While some may not like changes as they come and go among our businesses, we all know change is just a part of life. Running a business is a 24/7 kind of enterprise and one always has to be on their toes, growing and changing with the times, balancing life/family with demands and following trends!