Honestly as I first time builder I was following suggestions in the designer recommended video. The instructions gave a decision of glass or just epoxy and tape, but glass seemed to be the more common path and what was shown in the video.
This boat will be used as a small sailboat for local lakes and not as a tender.
I don't plan to be leaving it in the water overnight, but I can imagine it will see it's fair share of scuffs and dings, so the extra protection of a layer of glass seemed appealing.