Trillions I am not a smug bastard or another patronising arsehole thanks!
I may now this year be in a position to have my family around me but belive me when I say I have been totally alone at Easter, Xmas New Year (in Scotland that time - longer holiday 2 days). Literally just moved somewhere. No husband. No kids. No friends. Not knowing the local area. Over 400 miles from anything I know and initially not even having my moving boxes to unpack - literally sat in a house with no real idea where I was. Alone.
I still managed one day without shops.
I get you may be pissed off because you cannot do your first choice thing today but REALLY?? ONE DAY???
There are plenty of other things you can do to get out and about lunch out (plenty of pubs and restaurants open),cinemas are open, get our for a walk etc. I doubt you walk around Asda striking up covos with anymore strangers than you would in any of the places mentioned above.
If it is a long term lonliness thing you are struggling to deal with then perhaps look at getting involved in something new like a hobby or club, where you may meet other people.
If its the need to shop then the internet is open for business.
As much as you think I am an arrogant arsehole I think you are rather lame at not being able to cope with the one of the few days a year shops are not open and be thankful you are not living in pre 1994 because every Sunday was like this then!