I guess you have pretty good earplugs or headphone : at this condition a quality smartphone can (mostly) do the job.I noticed that most of those close to me, friends, acquaintances, were listening to everything on their smartphone. Young or older. Probably out of convenience, we've gotten used to wanting something "Now". We have no more patience. The phone has become our multimedia center and often even a substitute for physical interaction with others.
And I started to train my ears for mixing and even mastering especially for online platforms.
Recently, at a small live event, I found myself disturbed by the SPL, by the bass and treble, by the modern "smile" curve.
But to listen to music, quietly, confortably sit, maybe a old jamaïcain rhum in hand, a real sound system is needed...