When the industry is still fairly new charging has not been standardized although its close now. Chargers are getting more efficient the government is getting more involved.
There is no future proofing.
it takes a while for things to standardize.
with that said the electrical install part...
it depends if they have to access the main lines connected to the meter.
If you have enough supply and your braker box can handle the large amps needed then they should not have to be involved.
It might also depend where you live,.
actually with it being able to send juice back into the...