My touring bike is a steel gravel bike, and it has Brifters, and I love them, but in saying that, I wont be touring out of Australia, and you can get brifters anywhere here, although they are bloody expensive. My bike has been going since new 2016, and no problems, with rough dirty dusty roads. I think the only thing that would break them would be an accident, or they just plain wear out in the next 10 years, but everything wears out. Like I said I love them, but the only shifters I had before were downtube shifters, so I may not be a good example for their use..