I have been in a construction trade union for 28 years, I am 4 generation craftsman, that I know of, I know 2 people that have lost fingers to saws. One was a masonry saw with a faulty guard, the other was my middle school wood shop teacher, he was cutting 1/4 plexi glass on a cabinet saw. it's not that hard to keep your fingers, don't stick them where they don't belong, never stand or push in the path of the blade and stay 4" away at all times.
As a Mason I have nearly lost a finger a time or two, but it is usually due to miscommunication between you and the crane operator that you cannot even see, I have rode 12,000lb limestone 80' to their final resting spot and welded off the anchorage system while standing on it, Ive been lucky and those days are behind me.
…or it breaks and you can't find parts, or afford them.