Sure, but they're not there yet, and probably won't be for decades and several more generations of designs. And a much higher flight rate: remember, this is an industry where no system has more than 1000 flights, and most don't have 100, and all those are with vehicles that were destroyed in the process.

In the meantime, having an abort system is probably a good idea. And besides, it's a customer requirement. And you know how customers are.