It depends on what someone wants to do in it! I don't think ones like the one above would be practical if you were swimming laps, lifesaving or a competitive swimmer , but for having a nice cooling swim at the end of a hot day I think they'd be very appealing for many people, especially for very religious or elderly people. Having products like these on the market enables everyone to enjoy our gorgeous beaches.
Yes. Perhaps not the skirt kind, but the rest of them look practical. I just dislike the feeling of being wet when I'm not actually in the surf, so that would be the only downside of these options for me - they would take a little longer to dry than something that covers less skin.