Robots can be used on certain jobs to curb accidents due to negligent behaviour of some people. When robots are used on such work, it does not cause any human life due to accidents at the work places. Human resource can be efficiently used by involving humans to perform those tasks which demand human skills like critical thinking, problem solving etc while robots can be used on low end jobs like moving cargos, heavy weights lifting etc.

There are home robots, teaching robots, worker robots, doctor robots and space robots.
I think home robots will be able to guard our house. They will be able to recognize our faces and if they find someone strange, they will sound an alarm to warn us. About education, teaching robots will be able to help students study many subjects like Maths, Literature, English and Geography. In my opinion, worker robots will be able to do dangerous works such as building our buildings, skyscrapers and bridges. About health, doctor robots and nurse robots will be able to examine sick people, take cafe of the injured and give them prescriptions. Space robots will be able to make surveys or inspect on other planets in order to know how they are.