you would have a minority paying for everything with the majority making decisions. can we take away the vote from the minority?...
That was my first thought as well - mob rule. Ben Franklin's two wolves and a sheep voting on what's for dinner.
I don't have any specifics for this conversation, but in general I think our tax system both rewards and punishes the wrong things. People respond to incentives. If you want more of something, subsidize it. If you want less of something, tax it. It really is that simple. What does our government subsidize? Debt, consumption, unemployment, pregnancy. What does it tax? Ownership and productivity.
One personal example is that my wife quit her job because it put us in a tax bracket that meant she was almost working for free. So the system incentivized a productive citizen to drop out of the work force. Another is that when I remodeled my my house I only built one legal bedroom, because my property taxes for even a one-bedroom house on 4/10th of an acre are $14,000. The tax system incentivized me to game the system by only putting closets in one room, and using wardrobes in the others.
Think about what would happen if you incentivized your kids the way our tax system incentivizes us: If your daughter gets a job, you take money away from her. If she fixes up her room, reassess it and take more money away from her. If she quits her job, give her money. If she comes home pregnant, give her more. Inflate the currency so that saving becomes difficult for her, and long-term debt becomes attractive. If she goes broke because of poor decisions, bail her out.