With a possible high initial cost, would it not be better in the long-term to train the poor to become self-reliant?

The system as it stands is a broken system, to give money to the poor and sandbag them whenever they try to better themselves by going to school or getting job training. That seems counterproductive to getting them of the government dole. Why not take a person, for instance, a mother on welfare with kids, provide her with childcare, let her keep her dole, but pay for her training, through a vocation, trade school, or Jr. college for two years. One can get training in 24 months in many areas that will allow them to get employable skills. If they stick with the training and don’t flake, they get the training covered, and the childcare. If they flake, then they have to pay back what was expended on them. Even if the initial cost per recipient might be high, in the long-term if it gets them working and off the government teat, would that not be a better use of the money?