Yeah, well, I have to disagree with you on this one.
A few years after I met my wife, we had to sell her apartment so we could move to another city together for jobs. We tried to be cheap and sell the place ourselves to save money. We teamed up with a lawyer that specialised on selling real estates privately. We had a few viewings, but people were hesitant to bidding. We got a lot of questions about why we didn’t use an agent.
After a few weeks, we contacted a real estate agent, and sold the place after just one viewing for a better price even after paying the agent fee.
I think it is important to leave the job to professionals when selling thing with high risk and high value.