There are steps to follow and you need to get a license. Some areas also require payment of a fee. Remote pilot certificate When you have this kind of certificate, it is possible to fly drones legally in certain areas, even if your intention is to make a profit. You can make money from a drone from the selling of footage, goods delivery and so on. There are many flying restrictions that you may have to deal with.
You need to budget on the kind of drone you want to purchase. Usually, you should be able to get a fair priced one, but if your intention is to make some money, then a good quality one is the best choice. Flying for fun