Teach them about early savings, exp(x), low taxes, low regulations, low personal and low national debt, and the value of getting married, having kids, and staying married.
Teach them the Christian religion if they don't have any.
Show them patriotism, conservatism and capitalism, and warn them about the suicide mission of Communism in all its forms: libealism, socialism, feminism, environmentalism, LGBTQ+, etc.
Absolutely don't bash the younger generations. Support them financially, intellectually, emotionally, all ways. Be their friends.
Teach them about politics, which doesn't make sense to most people until middle age.
Teach them that LEGAL immigration is being used to undermine them and replace them.