I think it is both. I've driven the same car for the last 5 years and lived in the same region for much longer.
I've noticed new parking space are smaller than before and it seems to go by age of development. There is a grocery store nearby with undergound parking built around 2005 with comfortable parking spaces. It roughly has 4 columns for every 2x4 block of spaces. Down the road there is another built in 2018 with tight but doable spaces and columns every 3 spaces. Across the street is a building finished in the last year or two where the spaces are small enough that every other is usable. That one has columns for every 2 spaces. I no longer park there because frequently people park in a way that effectively claims 2 spots.
I've noticed new parking space are smaller than before and it seems to go by age of development. There is a grocery store nearby with undergound parking built around 2005 with comfortable parking spaces. It roughly has 4 columns for every 2x4 block of spaces. Down the road there is another built in 2018 with tight but doable spaces and columns every 3 spaces. Across the street is a building finished in the last year or two where the spaces are small enough that every other is usable. That one has columns for every 2 spaces. I no longer park there because frequently people park in a way that effectively claims 2 spots.