So it's preferable to have to find the charging spot open, scramble your car into it, do something else for half an hour, then skedaddle out of there before the tyrant notices...
...versus just plugging in and walking away and it's charged by morning?
L1 outlets at the regular parking spaces would, as mentioned, solve 90% of needs for 90% of residents, greatly alleviating the traffic at the small number of L3 spot(s). And they're way cheaper even than L2's.