Now, I'd never get one of these machines, because it tastes like ass - I tried it at work. People at the office walk up, pick from 20 different flavors, and make their cup. What is it you suggest to replace that? 20 huge office pots that someone refills from a huge drip machine, so some are out and some get underused and tossed/refilled in a few hours?
Your comparison is what does not make sense. You are taking your use case, which does not apply to 90% of the self-brew cases. Literally the definition of a strawman. I personally think cars are a bad invention, and I don't see the use. I live across the street from work, and once a week take a lyft. Why are all these people driving?? I just can't figure it out.
Now, here's what I do actually do. I have Kona green cherry and Peaberry light roast. I take a cup of green and grind it fine in my conical grinder. I double-filter tap water, boil it, then filter it again the next day once cool. I use that to boil the green for about 10min in a large steel pot. I drink half of that mixed with fairlife fat free milk. Good for 1st drink of the morning. While that's going on, I grind 2 cups of peaberry, and dump it into the pot, adding a lot more boiling water. Boil for 2 minutes, let sit for 10. Now it's mixed light roast peaberry and green, for that lightly charred lawnmowerbag taste. It's naturally quite sweet, but sometimes I'll add a splenda.
I spend more than an hour per day on coffee. The process is relaxing. When I'm at work running from one meeting to the next, I pop in a cup with some weird flavor and go on my way. If I had to do what you do, I wouldn't do it at all. That's the price of your 6-7 minutes - a barrier to entry that's just too damn high.