Yes, geothermal energy would make society less dependent on oil, because geothermal energy is as green energy. It is a positive thing any time society can be less dependent on oil. Geothermal energy is a natural way to harvest energy that does not have a lasting detrimental effect on future generations. It should be pursued.
Oil reserves are limited and being depleted rapidly in a world where more and more nations are developing industrially. We cannot continue to power our world in the way that we currently do. To prevent disaster we need to be looking for alternatives and fully exploring anything that could be worthwhile.