Why aren't people social distancing anymore?

Ok My study is very small.

At work we are spread out but there are times when we cannot social distance if we need to physically work together on something or similar but for the main we are working 2 meters or more apart. No masks though.

Petrol station queue, everyone was less than 2m apart. varying degrees of mask wearing. Station on very busy A road (North to South)

Vaccination centre, the dots on the floor were not even 2m apart, let alone the people in the queue. All wore masks.

Sainsburys last night was quite busy, again no SD at all. Various people either stood right next to me or reach over me for things. No one even bothered to SD in queue. Everyone was wearing masks.

I don't know why I have added the mask wearing BUT isn't the most important thing to still social distance? Why are people not doing it? Why does someone desperately need to touch a blouse next to a T-shirt I am looking at or similar?

I know people may like to post what it is like by them but has the social distancing advice changed?