Hiring remote workers at scale is super complex if you want to comply with local laws (and you must). Hiring contractors is easy but if your contractor should be indeed classified as an employee you will be in trouble one day or the other. You have to set up a legal entity in that country/state, provide workers' comp, health benefits, unemployment, comply with various laws on leave, vacation, medical, etc... This is quickly a nightmare and it is why true good remote companies hire only in handful of states/countries.