Earlier quoted context omitted.
Extraordinarily few people reach the cycle limit of the SSD on their Mac. That's not something to worry about for probably 99.999% of people, so it's just a weird thing to bring up. And how do you know you're not seeing many old MacBooks? The MBA was launched over a decade and a half ago and it still looks almost identical to a casual observer.
That's why there are so many reports about M1 Notebooks dying after 3/4 years out there. There are huge noticeable differences between a 10 year MBA and a recent one
And as long as you have the Silver color option, a MacBook Air from 2023 looks very much like a MacBook Air from 2014 if you're not stopping and looking closely at it.
If you have one of the colored ones, those date back to 2018 with, again, a very similar design to today's.