Why are barns in the United States often red?

https://yall.theatl.social/post/176216

Why are barns in the United States often red? - Y'[email protected]

Farmers originally used to seal their barns with a combination of linseed oil (red-ish) and iron oxide (rust, red). Then when paint came around, apparently red paint was the cheapest. bobvila.com/…/solved-why-are-barns-painted-red/
Solved! Why Are Barns Painted Red?

Any trip through the countryside might produce the same question: Why are barns red? Is it a matter of agricultural tradition or a product of necessity?

Bob Vila
Yeah red dye goes a long way and is easy to make
Except car pigments? I hear that they are the most expensive.
That’s because da red wunz go fasta. Requires extra points to buy, more spensive.
Didn’t realise orkz were car salesmen all along