Not true for all. We have them on all our bikes and love them, although on 100+ mile rides, they start to hurt--but I haven't yet met the saddle that didn't at that stage. I find Selle As incredibly comfortable.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks