Nowadays, there is a general consensus that we simply "don't have time" to do things: we don't have time for or do XYZ so we look for something that offers convenience for us. Yet somehow, it's normal to say that we're willing to binge-watch our favorite TV show on Netflix or Hulu or Instagram what we're doing.
While it may seem unfair to compare skincare and makeup brushes (they're practically apples and oranges), they do serve the same function: they are tools we use to create our personal aesthetic.
For the heck of it, I typed "makeup brushes" to see what Amazon will deliver for me. Oh, they delivered alright - they just didn't warn me that I'd end up with a raised eyebrow in the process.