Who accepts USDT?

Who, exactly, accepts USDT? I'm curious to know the breadth of its acceptability. Are we looking at just a handful of select businesses, or has the adoption rate been more widespread? Could you elaborate on the types of businesses or institutions that have integrated USDT into their transactions? Also, are there any specific industries or sectors where USDT is particularly popular or seeing the most usage? Lastly, are there any geographical regions where USDT is more commonly accepted than others? I'm keen to understand the full scope of USDT's acceptability and usage.