Well I think it really does depend on where and how you choose to shop, and what you eat.
Not being a 'gardener' as such, altho I still manage to grow some herbs and spices, I don't grow much food.
I buy my meat and vege, normally at locally sourced outlets. I really dislike shopping at supermarkets, but I do sometimes, for convenience. It really comes down to personal choice, or habits , or laziness, ignorance or attitude.
Woolies ?? the only supermarket within 15 klms, is so disgusting.

As a little outpost, the produce here is often old, and often unfit for sale.
Ever travelled through southern NSW.? Around oh I don't know, north of Jerilderie. That is where all the Woolies stuff is warehoused and shipped from. Oh I can look it up on a recent purchase I made,

BUT anyhow, you see the incredible sight of an absolutely massive warehouse slowly approach, as you motor along at 100+ kph. First time I drove past I was gob-smacked.
The trucks out there are just amazing.. you can see them coming for literally minutes before they get close, it is SO FLAT.
Here 'tis
1 Woolworths Way
Bella Vista NSW 2153.
THERE is nothing around except the flat lands of the Riverina, and mirages. Well that was about 8 yrs ago, but things don't change much out there. Except the appearance of this huge warehouse.
Hmm must look it up on Google Earth.
It is amazing to me, that produce all travels there, first, from wherever, before being distributed, often back to very close to where it was produced.
Sounds crazy eh.?