Grocery, gas, convenience and drug Store layout design

Grocery, gas, convenience and  drug
Store layout design

Candy bars, candy, sweets, snacks, chocolate,
soda, sugary and sweet beverages
at front checkout stands and lanes

"Energy" drinks and shots loaded with
caffeine, usually sweet, sometimes with
"vitamins" included, have been added
to this list in the
last few years

Is this worldwide or just in the United States?