There's lots of solutions: 1) forcibly sterilize poorer people so they can't have children 2) ban poorer people from raising their own children, and instead sei

There's lots of solutions: 1) forcibly sterilize poorer people so they can't have children 2) ban poorer people from raising their own children, and instead seize them and have the State raise them in institutions (like in "Brave New World") 3) boarding schools for poorer children (you mentioned this) 4) send poorer people to re-education camps to teach the "positive" behaviors and values Obviously, these solutions are not very palatable to most people. If you want solutions which aren't severe human-rights violations, there really aren't any, except subtle, long-term things such as maybe taking control of popular media and using it to slowly indoctrinate the population into "desirable" behaviors and values.