Always thought it odd that a good wooden boat looked totally fair to the point you can't tell it's wood, and then some plastic ones intentionally molded in fake 'lines' along the hull to make it look like it was 'wooden'.
I picked up some of my ideas from the wooden boat pros in my harbor, on how to treat my- now 54 year old- fiberglass CCA era yawl.
Gel coat is a faint memory on boats of this age(many owners are in denial,...). For some old boats, that will mark a cross road in it's future(or lack of). A professional glass topsides paint job with state of the art coatings is a big investment. In some cases(and these casing are growing), more than the value of the boat. Skilled labor $ is headed to the moon(I'm in the home design/build field and witness the rise daily).
The wooden boats nearby that I've been studying for a couple of decades, have a different way of treating topsides. Even modestly maintained wooden boats get a brush applied coat of paint fairly regularly. That's because a 'coat of paint' is easy and cheap both in cost and time.
The carte blanche woodies I photograph get a more involved 'coat of paint'. There's an ongoing fairing program that simply seals topsides seams and new dings. That takes a bit of time, but it's nothing in $ compared to the typical 'awlgrip' investment of a glass boat that's gelcoat has seen it's last wax job. In fact, I've watched the pros brush(not even roll and tip) apply a finish coat to a 40'er in about 5-6 hours, with a resulting quality, that is simply unbelievable!
So I've picked up the wooden boat topsides treatment for my old glass hull. No, I don't get anywhere near the quality of these wooden boats. But my process of staging, light sanding with an orbital sander, taping-a roll and tip coat of single part enamel, is a relatively easy 2 day system. The actual coating takes about 4 hours(I actually enjoy it painting with a brush) and 2 quarts of paint.
I get 3 years out of the coating. I could improve the result and duration with better prep, better skill and a two part paint. But I will never forget the nightmare of removing the failing awlgrip from my hull 15 years ago(never! but that's a different post altogether).
So while I don't think there is much needed for these old hulls in structure, even 50 years on, I do think 'cosmetics' will send some hulls to the landfill that might be saved by this 'wooden boat' process of painting.