Scope of cleaning jobs in New Zealand and other countries

In New Zealand or in other countries there is much cleanliness in the surrounding because the people of these countries want a neat and clean environment. That`s why there are large cleaning companies are set up in the last few 5 years. In these companies, there is a large number of workers are joined every day. There is a huge scope for getting cleaning jobs in New Zealand and other countries also. There is no more demand for the highly professional degree or diploma for these jobs because there is no more technical work in this job. But these workers behave like a professional and there is a wide income from this job profile.