“Most shoppers seem to just grab what they like and don’t bother to look at prices. Many ... others don’t care about prices I guess.”
We can afford to not care about prices, but the way I was raised, Mom and Dad had no choice but to care a LOT.
For decades as an adult, we lived a beyond-thrifty lifestyle. Now I can’t get that mindset out of my system, and can’t imagine spending willy-nilly for a good price.
So I care about prices and pay closed attention.
I too grew up in a very thrifty household and yes, it gets ingrained into your attitude about spending. To this day I still stop to pick up loose change on the street. ;)