Maybe the reason kids nowadays don't respect their parents is because they learn in school that their great grandparents were orangutans.
This Monday night is Passover Seder night. Seder night is a family affair when children, parents, grandparents and great grandparents get together to refresh our awareness that we are descended from holy ancestors whom Hashem delivered from bondage in Egypt. The more we go back in time, the closer we get to our monumentally holy great grandparents. That's why we have so much regard for previous generations. Have a look: