A license makes no difference. I was selling a house last year, not my first time around. I had NEVER met a buyer or seller until closing before. Buying you make an appointment and the seller is gone somewhere. As a seller, you are not home when people come looking.

I had a realtor and buyers just walk in one day, zero notice, didn't knock, didn't use the lock box. And I would think a licensed agent call my realtor and say hey that guy was home. Never said a word.

The next buyer I spent an hour trying to avoid politics as they asked question after question at the showing. Another who just showed up at least they did knock. They were hard core Trump people, looking for a red town with even fewer regulations than the red town they live in. Made an offer then found an excuse to back out, far to overextended to buy it. A 100% VA loan, zero room for any problems.