“hes still a yeshiva bachur when hes not in yeshiva so its still ok if hes wearing his uniform”
Far better and more important that he is still a Yeshivah bachur when he is NOT in a uniform.
Also regarding that article, which indeed was a fine story – if the boys were merely wearing their Yarmulkes, even if dressed casually, they would also have been recognizably frum Jews. My friend’s son was driving by one evening after a snowstorm, and saw the rebbetzin of our shul struggling to shovel her walk. He stopped the car (no easy feat because there is no parking on the street on either side, and picked up her shovel and did the job for her, then went on his way. Had he not stopped, she would never have noticed him driving by. Only he would have known. Acts of chessed are acts of chessed, no matter who does them. And Jewish males who are religiously observant, are usually recognizable, whether or not they are wearing a hat.