When they say "I can't scuba because I hate snorkelling, water always chokes me",
You say "Yeah me too, I tried to scuba with a snorkel once. All I got was a mouthful of water and I choked"!
When I did my rescue class, my buddy and I had to do a required air share. It was his turn to be the donor so I gave him the signal and he gave me his primary. Then as he went to fetch his Air2, he grabbed his snorkel instead and got a throat full of water, which sent him bolting to the surface, which in turn ripped his reg out of my mouth and left me sitting there (hypothetically) with no air. I calmly recovered my own reg then went up to see what all the fuss was about. He was on the surface coughing and sputtering. The next words out of his mouth were "Snorkels don't work under water very well!"
We agreed it was probably not a good idea to be wearing a snorkel and have an air 2 on the same side, or to have a snorkel on while scuba diving period.
One less thing to get confused about, but hey, we were green too.
I do wear a snorkel on occasion now on some beach dives when there is thick kelp to contend with. I find it easier to crawl over it and maneuver through and around it face down so my tank valve is out of the water. I wear it on the left. I only use a simple straight J tube freediving snorkel if I use one at all.
Some of the best scuba divers I know were freedivers first. Freediving/skindiving is excellent pre scuba training.