Numerous guitarists struggle daily with nail problems, and rightly so because, both with classical and acoustic guitar, the best sound is achieved by picking the strings with one’s natural nails. At least that’s an opinion I share with many other friends and fans. If guitarists who use nylon strings can have nail problems, just imagine those who play the acoustic!
In fact, not only the strings are made of steel, but they are also knurled and with a higher tension, and the trouble is that if you play frequently, even if the nail doesn’t break, it will surely wear out. Perhaps this is also why not many acoustic guitarists are using natural nail.