In Australia people do both. We don't have V2G yet, but EVs plugged in at home overnight with L1 charging can get charged by the home battery that was charged up during the day by the PV on the roof.

The solar PV and now storage rollouts in Australia have been one of the best government investments in public infrastructure in my lifetime here.

The more we electrify, the less reliant we are on the crude -> foreign refineries -> imported/distributed fuel risk.

Harvesting solar power is an awesome thing to do both at home and utility level.

PV and wind utility installations are being built with storage co-located, there are companies building synthetic condensers to maintain the grid stability and the job of frequency support is now done mostly by batteries, not gas.

We need to make electricity basically "too cheap to meter" and electrify our primary industries, mining and agriculture.