Dan O, I hope the kid, and anybody else that didn't know the info you posted here, pays attention to what you just posted. I like you have seen a lot of delamination of skiffs and also large work boats that could never be fixed. The cause was usually attributed to cracks caused by minor scrapes and collisions these open the glass to entry by water and then at some point the water will freeze making the gaps larger and letting in more water which will again freeze and on and on.
I still like a lot of the reasons that have been posted here for glass boats but I notice that after owning a lot of different craft the ones I have now are either wood or aluminum or inflatible I must have developed a "personal preference".
Sold my first Alumaweld that I bought in 1969 from Willie Illingsworth to friend who sold it ten years later to his brother in law who is still using it. I went out to his place the other day after this post started and took a good look. The damn thing is still ready to go and the biggest dents are still the ones I put in launching it back when there were no launches.