School bonds are long term financing of capital expenditures. New buildings, and remodels of existing buildings are typically financed. The tax payers are on the hook for typically 20 years for the bills. After 20 years, the net effect is that the improvement cost more than 3 times as much.
High School Students are under tremendous pressure to go straight into a four year college. It was not the route I took and it is not the best idea for the majority of High School Grads.