yankel> a driver license for a yeshiva bachur, is an opening to many ‘other things’ where his mind could be, and should not be
See R Hirsh’s opinion that full isolation leads to lack of immunity (I presume he writes about it not theoretically but pondering how so many people went OTD in his generation). So, if you start with isolation, then you logically come to this conclusion that having a driving license; maybe having legs that can move you around; having eyes and ears are a source of danger. You don’t have to agree to R Hirsh’s approach yourself but at least you might agree that his opinion is a legitimate Torah approach and thus, maybe, some people, some place, could try it out.