Bad writing and Kariya showing his elitism again.
Woman: I literally won't have time to do prep before cooking because of everything else I need to do.
Yamaoka: BUT PRECUT FOOD BAD, THINK OF THE NUTRIENTS
Everyone: You are right, I'm sure the problems will magically solve itself.
Only rich people who doesn't actually have to work hard all day long can talk like this. Because overworking yourself just for the sake of Healthy Fresh Food (TM) just defeats the purpose of the healthy food itself. Nutrients even from the best fresh food are not magic elixirs that can immediately heal the body from the negative effects of exhaustion and stress.
That "Well, men and women should work together to figure this out" won't cut it.
Be consistent, man. Where's the big old rant about how shitty it is that expenses are so bad it needed families to be dual income and both parents had to slave away all day? Where's the ran about how shitty it is that parents have to pay for kids to go to cram schools because entrance exams are tough? And how equally shitty it is that everyone are obsessing about school choices like it would make or break a person's future? Dude packed up and moved to Australia because the education system in Japan sucks, among many other things. If you're not gonna address this then don't bring it up.
That's why I said it's bad writing. If his main point is to highlight the importance of fresh produce and how precut ingredients are not good, he should've devised a different situation for the story framing.