I'd imagine most people aren't 100% positive on what they want to get beforehand. Sometimes you only realize you want something after passing by it. Maybe it's something you haven't gotten in awhile and hadn't considered beforehand.
And even if you are completely sure on what you want in advance, having someone else do it is not always great. At least with Instacart, the person doing the shopping frequently didn't know where something was and just assumed it was 'out' and tried to substitute it (badly). There was all this awful delay and back-and-forth and crappy picures with the person shopping to try to get the right thing.
Doing it yourself doesn't have that problem. You know what you want, why you want it, and what you're willing to bend on. No, X brand cheese is not a substitute for Y branch I wanted, never do that. But yes, Z brand and type of milk is fine compared to what I wanted and I know they are frequently out.
Grocery store employees aren't any better at this, btw. Especially since the stores like to re-arrange on a monthly basis.
And even if you are completely sure on what you want in advance, having someone else do it is not always great. At least with Instacart, the person doing the shopping frequently didn't know where something was and just assumed it was 'out' and tried to substitute it (badly). There was all this awful delay and back-and-forth and crappy picures with the person shopping to try to get the right thing.
Doing it yourself doesn't have that problem. You know what you want, why you want it, and what you're willing to bend on. No, X brand cheese is not a substitute for Y branch I wanted, never do that. But yes, Z brand and type of milk is fine compared to what I wanted and I know they are frequently out.
Grocery store employees aren't any better at this, btw. Especially since the stores like to re-arrange on a monthly basis.