People plan poorly. There's a lot of money to be made helping people through that.

And when these services are widespread, people will be free of the necessity to expend energy "planning" their access to the essentials of life. Then we can focus on bigger and better things.

How would this service solve running out of milk at breakfast? How is this a problem that must be solved before we focus on bigger and better things?

This is bigger and better things. Every cancer research scientist with kids probably loses hours of potential work time a month dealing with dumb shit like "we're out of milk" that this would solve. I don't think being super-narrow-minded about "big ideas" contributes a whole lot to the progress of society; if it's something lots of people are willing to pay for, you have to accept the possibility that it's useful and contributes to society in a way that you couldn't think of immediately.

Seriously? Bad planning? Those reasons are things that happen to everyone, sometime. Are you perfect?

Eh, cough syrup expires. I had a nasty cough a few months ago, and discovered that my previous bottle of cough syrup was 5 years old.

Bad planning happens.