For those of you who feel uncomfortable using your boat without a motor, I suspect a lot of it comes from the ability to dock. Consider the video in this link. I have not used a motor on my Day Sailer. I removed the motor mount that was originally attached and never looked back.
https://asa.com/online-sailing-course/docking-made-easy-videos/?utm_source=announcement&utm_medium=email&utm_campaign=2016_12_DockingMadeEasy#returning
The video he linked shows the easy case, docking upwind. Now, the DS does some pretty tight turns, I've been able to make U-turns at launch ramps that are about the width of about 4 trailers side-by-side without gaps. That allowed me to turn a downwind docking into an upwind one.
I also always have a paddle at hand; stuck vertically into the water it makes a great emergency brake. And, of course, it helps if you come to a stop a few feet short...
As for approaching or leaving the dock under sail, the channel is 4 boat lengths wide, five where there are gaps in boats moored along the side. I find that that is plenty of water for tacking in or out.
What are your experiences?