A car is a big thing for anyone going into adulthood, it's a big seminal moment.
Even if I had money to invest I wouldn't invest it in oil companies - - or their bankers, suppliers, customers. . . really that means the whole stock market. I'm not opposed to divestment, but I think by itself it won't get very far. The demand is still there, the fossil fuel infrastructure is still there. Where I would like to see our political energy go is to stop ecocide on a local and bioregional level. Each new energy project involves horrible abuse of mountaintops, groundwater, forests, etc. , because all the easy resources have already been extracted.