While I don’t doubt there are people too lazy to plug in, especially when they only have a level 1 chargwr at home, just having the option will encourage more charging infrastructure. New homes are being built with a 240v circuit to the garage “just in case” the buyer gets an electric car. Corporations are installing chargers in oreferred parking spaces and calling it an employee benefit.
You’re saying people are wasteful. That’s true. People could drive slower on the highway and save money because they use less gas.
Going pure EV is better, but people still want to be able to fuel up in 5 minutes. Giving them both in one car will support the transition as adoption expands.