I think it's because Americans, more than nearly all other cultures, love convenience. It's why the love for driving is so strong in the US. Don't walk or ride, drive.
Once I was walking back from the grocer in Florida with 4 shopping bags, and people pulled over and asked if my car had broken down and if I needed a ride, people were stunned...I was walking for exercise and for the environment...and I was stunned.
More evidence of this trend can be seen in the products and marketing being produced:
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Do you need to go get something from the store? get your fat ass in the car and drive, better yet, get a car that drives for you? Better than this, we'll deliver it with a drone...don't move a muscle.
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As convenience in a domain becomes ubiquitous or at least expected among consumers, they quickly readjust their evaluation of "having time for X" around the new expectation of the convenient service, treating all alternatives as positive opportunity cost. This would explain a lot of those folks who are upset when it's suggested that they don't need Amazon, Instacart, etc. in their lives if they are to do something about their contributions to mass labor exploitation.
Of course these conveniences quickly become ubiquitous in large economies with a glut of disposable income, which encourages VCs to dump money into these enterprises so they're first to market, and also to encourage the public to believe that the future is already here and there's no reason to worry about backsliding or sustainability of the business model. Yet in every single case we see prices eventually rise, laborers squeezed, etc. A critical mass of people haven't yet acknowledged this inevitability, in no small part due to this fixation on convenience at the expense of more objective, reasoned understandings (read: post-truth mindset).