It’s always tough to adopt new technology, but disc brakes are far from new. They’re only relatively new on bikes where they are just starting to get a foothold, but Discs will eventually dominate. They work better, are not affected by wet weather and will not wear out the rims on your wheels. When disc brakes first became available on cars, the car industry introduced them slowly by first installing discs on the front wheels (where, by the way, most stopping power occurs) and keeping brake shoes in the rear wheels to keep the purists happy. Over time, as it will with bikes, you cannot now find a car today, other than old collectibles, that does not have disc brakes. Better technology, better performance and safer overall.