This has nothing to do with iGents.
Braces are traditional, practical, and comfortable. I have not met one person ever who had pants made up traditionally and to be worn with braces...and then went and said he preferred belts.
Braces are tried and true. Belts, by and large, do a shitty job and should be reserved only for the most casual of outfits.
Edit: Also of significance is the cut of the trouser. It should be cut to be worn with braces...but importantly cut to be worn at the natural waist line...certainly not at the hip-line. Trousers cut at the natural waist line and worn with braces not only will fit better and be more comfortable...but they will also drape better and look better.