Also tomatoes, it makes them mushy. They last just as long on the counter
Tomatoes, cucumbers, oranges – you'll find them all unrefrigerated
The supermarket is also simultaneously optimizing for other considerations like "do our consumers like bringing a sweater in the middle of summer to visit the produce section"?
But an important point is that the temperature on those reefer units will be more similar to the one in a data center, than the one in a fridge. Lower temperatures will make harder to keep the optimal humidity level and the veggies will start dehydrating.
The idea of freshness in vegetables is basically keeping those thing's cells alive for as much as possible. Too hot, metabolism increases, too cold and they will dehydrate.
Selected veggies & fruits, all dairy, meat and so on - very cold places to be, even when ignoring freezer sections. And the cold seeps to other aisles and reaches quite far. But maybe French or Swiss people where I live have different acceptance criteria for this compared to say US, although my impression from US in the past was AC everywhere.
My typical schedule sees me working until 5:30pm, playing with the baby while the wife cooks until 6pm, eating dinner together until 6:30pm, bathing the baby getting it to bed around 7:30pm, then doing various housework, family admin tasks, or evening activities until 9pm before unwinding for an hour and going to bed to "sleep". The schedule is actually more pressured on days where I go to the office and don't get back until later.
My wife does have the opportunity to go to the shop in the morning or afternoon, but it is very contingent on energy levels (sleep is rarely good), baby nap times (variable but better off being respected), baby activity classes etc... . Going to the shop itself can take longer as you may need to suddenly deal with a nappy change or tantrum. It's not reasonable to expect it to happen multiple times a week.
In the UK the whole supermarket might be temperature controlled (cooled) where the domestic environment isn't.
Seems like it's probably pretty complex to work out
There's probably a mean indoor temperature above which refrigeration makes sense, for example.
https://www.seriouseats.com/why-you-should-refrigerate-tomat...