There'd have to be charger every 5-6 meters or so along most sidewalks where I live to make electric viable. Certainly not impossible, but sounds like an absolutely massive investment.
Do old school parking meters (one per parking space) still exist, and if so, why?
One ticket machine can sell paper parking tickets for 10s or 100s of parking spaces.
Some modern machines even avoid the printed ticket entirely and allocate the payment to the number plate of your vehicle.
Sure downtown there is parking meters, but not in the suburbs where free parking is the norm and most parking spaces go weeks between seeing anyone park in them.