I agree with you on most things. You made me wonder about something I've been wondering about, even today, and that is: is it a good idea to optimize your life and get rid of all chores, so you basically won't have to do anything ever again in your life and everything will be automated?
In principle it would seem a great idea, to automate your life entirely and make it as efficient as possible. But then you will turn into Howard Hughes and say "come in with the milk" repeatedly, and won't have any fun for your entire life. Or even worse you could be in a situation similar to that portrayed in the movie "Matrix" where these guys are actually not living any more, but they lead an imaginary life, which is perfect.
My conclusion is that I don't know... but if I have to draw a conclusion right now I would say that it's only optimal to optimize your life up to a point, after which it gets so boring that you need to get rid of some of the optimization and become more human and imperfect in order to enjoy it a little more.
Also, if you stopped buying milk, and stopped doing other chores, you might lose strength, the strength required to do not only those unpleasant chores but also required to do many other pleasant things. And that in turn may ruin your life, and you will have to resort to your previous lifestyle to make it happy again. For example, if I stopped seeing people by not going shopping, then my only occasion to see them would be when I go swimming, but then I may be so unused to seeing and been seen by people that I might feel uncomfortable getting into the water in front of the whole beach (a bunch of people sitting there and getting tan). I know because it's happened before. So, by going to buy milk every day, despite the fact that it seems a useless pain in the ass, I am actually getting used to being around people, which will benefit me when I have to get into the water and don't want to feel uncomfortable being around so many people.
Yet the perfectionists may not be able to reverse the process of optimizing everything. This is just like what happens to me at the restaurant. Once I've decided what the best dishes are (the best menu choices), and no matter how often I go, I'm always getting those dishes. And, by the way, I always go to that same restaurant (because I rank it as the best one). After about a year or two, I start telling the waitress to decide the menu for me, because I'm bored with my own choices, but I am unable to choose differently, knowing which are my favorite dishes, and yet I am not happy at all with my dinner, even though it's my favorite restaurant and my favorite dishes. So then I'll either get the waitress to pick for me, or I have to go to the second best restaurant, and I'll do that for a year (and always get the same food, again).
I tend to do this to every field of my life, even when I am the beach (my favorite beach), and I enter into the water. I have found the most efficient spot, where I step into the water in the most efficient steps (there's rocks, and other dangers). This was taught to me by my dad once again: that there is a best way to do everything, and that it's not ok to do things randomly, but you must find the most efficient way for whatever you are doing and be methodical about it.
Having said this, I still think the optimization of getting food and milk (I get the milk that expires in a few months, not the fresh one, it tastes just as good to me) delivered to you is an ok optimization, even though the delivering business may get out of control and I may expand it to all aspects of my life, even women (I already did, in part, get women delivered at home, but I couldn't get much done with them, because they weren't prostitutes).
To think of it more, even people who have swimming pools built at their homes, are bringing this optimization quite far. So are people with maids living with them. I mean, not just "sick" perfectionist people like me are in danger but pretty much everyone.