There are guitars out there in which the poly finish is more like a skin than a proper finish. The finish isn't bonded to the wood very well and you can almost peel of the finish - almost.
Preventive measures would be a carefully applied drop or two of water-thin CA that will provide security to the perimeter of the chip. No CA on the finish, just CA inside the chip. Simple.
It is likely that any repair done by someone without experience is going to end up looking worse than the damage. Dings dents, and bite marks, are all part of the history of the instrument. Well worn and loved instruments that show signs of road use don't get that way over night. People pay good money for road worn gear. Nobody has any respect for an instrument that looks brand new.
That super glue is some good stuff. A few years back I got an acoustic to repair with a hole knocked through the upper rear bout. The piece about an inch in circumference wasn't completely broken off but hanging on by perhaps a sixth. I used a block of wood to hold it in place in the inside and used my soldering iron on a wet cloth to get it to sit back in place then covered the area with super glue. After sanding and a bit of T-cut you really have to look to see it was ever a problem. Probably the repair I am most proud of, I don't think the "Invisible Menders" could have done it any better.
Several years back, I picked up an abused Telecaster Clone at a garage sale, solely for learning repairs and setup. It had the classic 3 Tone Sunburst w/Maple neck and the body was dinged to all hell around the whole perimeter! Must have been 30+ chips & dings all around it! Luckily most of the dings were in the black areas of the body. I used that Dan Erlewine YouTube video showing the superglue filling and razor blade tecnique on every single ding and all that practice paid off. By the time I was done and after a full rebuffing of the body, you could not find any of the dings & chips. Not only was I proud of the final results, I've kept it as it's gone through numerous pu & parts changes.... it's still a fine player!