Yes, people have a variety of occupations in the deserts.
People living in deserts have the same occupations as people not living in deserts. They may work as a doctor, lawyer, teacher, shop owner, restaurant worker, member of the clergy, farmer, rancher, miner, truck driver - you name it.
People in deserts work at much the same occupations as people who do not live in the desert - doctors, lawyers, nurses, teachers, farmers, miners, ranchers, truck drivers, mechanics, carpenters, etc.
School teachers, store owners, firemen, doctors, nurses, mechanics, police, secretaries, businessmen, and any occupation you can think of live and work in the desert. Millions of people live in cities and towns around the world that are located in deserts and they have the same occupations as people who do not live in deserts.
Austria has no deserts.
People in deserts work at much the same occupations as people who do not live in deserts: doctors, lawyers, teachers, nurses, mechanics, carpenters, truck drivers, restaurant workers, mechanics, maids, ranchers, farmers, miners, etc.
Some deserts, such as the Thar Desert, have relatively dense populations of people. Some deserts have few people. Each deserts has its own statistics.
yes
People in deserts work at much the same occupations as people who do not live in deserts: doctors, lawyers, teachers, nurses, mechanics, carpenters, truck drivers, restaurant workers, mechanics, maids, ranchers, farmers, miners, etc.
Most people who live in deserts live there because they like the desert. I live in a desert and love it.
By 'they' I assume you mean people. Yes, millions of people around the world live in deserts, including the author of this answer.
School teachers, store owners, firemen, doctors, nurses, mechanics, police, secretaries, businessmen, and any occupation you can think of live and work in the desert. Millions of people live in cities and towns around the world that are located in deserts and they have the same occupations as people who do not live in deserts.
Their deserts were used to protect them from invasions.