Here's a true story for you. I owned a rental property (a row home) that was going to start needing repairs soon. With prices up, I decided to sell. Someone two doors down, living in an identical home, also decided to sell. They used a realtor. I sold myself. I sold mine a month before he did. We both had bidding wars on our properties and he ended up getting $10,000 more as a selling price than I did. Truth be told, his house was in slightly better condition, so it didn't surprise me one bit.
But by avoiding commissions, I got $11,000 more than he did at closing. Of which, I owed $800 to a real estate attorney. In this market, I really think you have to be incompetent, unpresent, crazy, or lazy not to sell your own properties yourself.
I am opposed to the government mandating a fee for any service a private citizen provides.
There are folks who are capable of doing it themselves and getting the same results without paying a fee; more power to them. But there are lots more who make mistakes which cost them big time!