I have become more cautious about my hearing as I play music with a band and had some vertigo issues. To correct the vertigo, they put tubes in my ears and one didn't heal right...so, I HAD to wear ear plugs.
As I started doing it, I realize, I kind of liked it. It further blocked out the world and the ear protection was an added bonus.
I figure if driving with your window down can damage your hearing, waterskiing can't be much different. A couple kids at our club had some ruptured ear drums from barefooting falls..so...ya...just a little added protection.