Johng,
I don't understand your question. Who said us$5 is the normal price for a Red Stripe?
What I said was "The average beach price is around us$5, cliff price j$400, most everywhere else at j$350."
The average Jamaican does not frequent tourist locations such as beach or cliff bars. We tend to go everywhere else, which is j$350, not us$5 for a Red Stripe.
Also, surviving here is not done on Red Stripe. Better measures of the cost of living are made with staple items such as milk, eggs, butter, bread, flour, etc. Milk is now about $500 a litre, up about $200 pre-pandemic. Eggs are $1000 for 30, up about $300. Bread is about the same price, butter about double. Flour, salt and sugar slightly higher.
Meat is about double so one has to be creative when feeding a family.
It is not easy. Which may account for some of the higher beer prices.