It is about trust and a good experience. Explaining the flight and briefing the passengers is very important. Some people have bad experiences from by wanna be Top Guns. As a flight instructor I sometimes ask myself how did he get his license. Some of my clients I would not be so happy sitting in the back. On private pilot with a C172 tough that it is normal to have a 1100ft/min decent rate on short final. And during the debriefing he mentioned that no one wants to fly with him. Fly smooth, gently rotate, shallow bank turns and people want to come back. Fly with an experienced instructor and ask for critique.