How about two to three years of mandatory public service for everyone. Doing what is required, not what people elect to do. You report on your 18th birthday and you serve. Nursing homes, schools, hospitals, the police, the forest services, public housing, all have needs for unskilled labor.
Sounds a little too much like communism. Besides, what kind of quality work are you going to get from a person by forcing them to do something they hate?