I'm on the side that this is a non-issue, but, experimentally the market (especially if they expand beyond coffee) is larger than you think. People absolutely pay for home delivery of groceries. People absolutely pay for delivery when they could just drive/walk/bike/whatever. People pay >$100/year for Amazon Prime when they could just go to the corner store or Wal-Mart or Target. People pay for meal kits when they could go to the grocery store and pick out vegetables themselves.
I myself usually do the latter, but there's definitely a market for people doing the former. Also, don't forget the people who are busy with multiple jobs or families or long commutes; I can go to the store and chit chat because I'm in my 20s and single, but not everyone finds that a worthwhile experience.
(Also, as a coffee drinker, usually I want a good brand of coffee I know I like over serendipity, anyway.)
I myself usually do the latter, but there's definitely a market for people doing the former. Also, don't forget the people who are busy with multiple jobs or families or long commutes; I can go to the store and chit chat because I'm in my 20s and single, but not everyone finds that a worthwhile experience.
(Also, as a coffee drinker, usually I want a good brand of coffee I know I like over serendipity, anyway.)