Whats the point of having a front derailleur if most modern groupsets can handle the same range with a single chainring, and wouldnt a well-designed single chainring system be lighter, more reliable, and less finicky than trying to get a front derailleur to shift perfectly, especially considering how often they get out of alignment or damaged in a crash, and dont even get me started on the hours wasted trying to get the thing to shift smoothly and quietly, and can someone explain why roadies still insist on using them when mountain bikers have been rocking single chainring setups for years with no issues, is it just a case of cyclists being overly attached to outdated tech or is there actually some benefit to having a front derailleur that Im missing, and how do you even adjust the thing to get it to shift properly, do you really need to be a professional mechanic to get it right, or is there some secret trick that only experienced cyclists know, because from where Im standing it seems like a front derailleur is just a hassle waiting to happen.