You can't drill the ground and have hydrogen come out
You sort of can. Steam reforming natural gas is very very cheap, like way cheaper per mile than gas, and the United States has at least a millennium of natural gas even with the increased consumption that using it to power cars would bring. By then hopefully we'd be comfortable with nuclear or have space solar power or something.
They are the best source of energy in the future, there's just two issues with it:
Acquiring it: Because hydrogen is extremely plentiful but it's stuck to everything
Storage: I don't need to detail that one, bit self explanatory
But get through those hoops and welcome to a truly renewable energy.
You sort of can. Steam reforming natural gas is very very cheap, like way cheaper per mile than gas, and the United States has at least a millennium of natural gas even with the increased consumption that using it to power cars would bring. By then hopefully we'd be comfortable with nuclear or have space solar power or something.