According to Osho, the generation gap is a new, widening rupture between youth and elders created by modern education and rapid change: children no longer learn alongside parents, spend long years in schools, return knowing more (or different things) than their elders, adopt new values, and thus break the old continuity of life, respect, and authority.
It’s the big difference between kids and parents today because kids grow up in schools, not in their parents’ world, so they think and live very differently.