For people who commute regularly they can consume as much or more power from driving as their house does daily. For many people solar isn't an option for practical reasons (e.g. trees) and others have HOA restrictions. Also a used EV can often be had for far cheaper than any solar install.

In Georgia, the state offered rebates one year on EV leases that when combined with the Federal rebate made the 2 year lease of a Nissan Leaf cost nothing. When those 2 year leases expired many people opted not to purchase the vehicle resulting in a glut of Leafs on the market that had low miles for $5-15k. I bought one in 2017 and used it as a daily driver for a 50 mile commute for 3 years before we moved.

The last 3 homes I owned in Georgia would not have been suitable for solar. They all had 40-60ft tall pines on at least 3 sides in both my yard and neighbors that would have limited production significantly. The roof lines on two of those homes would have only permitted only about 4Kwh systems and even without the shade they'd never come close to the consumption of the home.

Also in Georgia the power companies are unregulated and so I had the choice of purchasing power from an EMC and the option of paying a few cents more per kilowatt to invest in the Co-Op's solar farms. And being a Co-Op, they also paid out annual dividends on both regular and solar power.