A few ideas:
Break the cycle of poverty. We know that if you graduate from high school and postpone having children until after that and until you are married the odds are strongly in your favor that you will never be poor or in jail. This requires phasing out AFDC over time.

Improve education. Public schools, particularly in the inner cities have failed our youth. In every case that I can find, parents of inner city children stand in line for a chance to send their child to a charter school rather than continuing to go to gang and drug infested public schools. The graduation rate and success rate of the children in charter schools lead those in public schools by light years.

Discourage dependency. Reduce the period of unemployment benefits and eliminate them for seasonal workers. Denmark determined conclusively that the greater the length of unemployment benefits, the longer people stay unemployed. Eliminate income tax refunds to people who have paid little or no income tax. If you earned a refund, fine, you should get it. If you haven't, you should not. This includes illegal aliens who claim a dozen or more dependents and send our taxpayer dollars back to Mexico.

What are your ideas todo something constructive for our youth and our cities?