Will this reduce long term unemployment?

Some people do NOT believe "You will eat food by the sweat of your brow". We taught our children good lessons since they were infants. Suppose some child is taught by his parents rules like, "Only fools work hard", "Every one is a thief", and so on. You can guess the outcome. There is a way to reform lazy, which has never failed with me yet. I forced lazy children to do a lot of boring and dull work for a few days. They improved so quickly and their scores jumped so high that even their mothers were surprised. Some people have been unemployed most of their lives or even generations. Some lazy women keep on popping children to get more money  and some people fake disability. The scientist Stephen Hawking could not use his hands or feet due to a disease. He managed to type several books by moving his head. It is cheaper to keep a man in college than to keep him in prison. The unemployed may not be all highly intelligent. Still work can be found according to their abilities which they can do at home. For example call center or learning Chinese and later translating it. This work will give at least some benefits to society. Even some one who has not done honest work for seven generations may become eager to find employment if he knows the alternative is to do monotonous work for free. Several criminals, living on welfare money or disability, will also reform. What are the harms in this solution? Why did the governments not adopt this till now?