Sure it wouldn’t be as easy as in places like Iceland, and I’m sure it would mean figuring out a lot of issues. And yeah, you wouldn’t be able to do it literally everywhere, but it probably would work in a lot more places than Iceland. But there’s currently no incentive to even try.
Yes but no. But yes.
Fault lines, water tables and permabality of rock are major constraints.
Sure it wouldn’t be as easy as in places like Iceland, and I’m sure it would mean figuring out a lot of issues. And yeah, you wouldn’t be able to do it literally everywhere, but it probably would work in a lot more places than Iceland. But there’s currently no incentive to even try.