So – is that a rational argument, for (*insert favourite expletive*)? There is still lots of 19th century and way earlier inventions around that work extremely well and have not yet been superseded. Are e. g. vaccines obsolete technology? Something this unusually unreflected elaborate unfortunately does not answer is the core question that any kind of innovation should have answers to: What is the actual value provided by removing the 3.5er jack? (except for the rather one-sided value of enabling full-scale end-to-end DRM, that is, and for audio gear manufacturers that can sell lots of new products afterwards). And is it sufficient? Robust?
Forcing better audio quality is not an argument as most consumers do not care that much and won’t know the difference anyway (all others already can use superior external DACs). Especially given that most audio on mobile devices is far from audiophile quality, starting with the usual lossy compression, and ending with audio mastering that for mass music is optimised for bad speakers in not-so-quiet, less-than-ideal environments. BT Audio? Already enabled (and not necessarily audiophile, to put it friendly). So?