Drysuit is easier than pantyhose, and vastly easier than a wetsuit. Just to make sure you should have him try both in front of a video camera. Use bright pink or red pantyhose for better visibility on camera. Post to uTube to get a wider variety of inpartial judges. :-D
Seriously though, if necessary I can put on a drysuit while balancing on a 2' x 2' car carpet surrounded by deep, wet snow. It ain't easy, but the cold and wet of a failure is great motivation. Putting on a wetsuit that fits properly is no where near that easy. It's also true that the seals are often the tricky part of a DS, sometimes seeming impossible to a 1st-time user, but with every DS user gets MUCH better at getting seals on and off.
Seriously though, if necessary I can put on a drysuit while balancing on a 2' x 2' car carpet surrounded by deep, wet snow. It ain't easy, but the cold and wet of a failure is great motivation. Putting on a wetsuit that fits properly is no where near that easy. It's also true that the seals are often the tricky part of a DS, sometimes seeming impossible to a 1st-time user, but with every DS user gets MUCH better at getting seals on and off.