I have read some websites that suggests that there was a cap on the bitcoin price of around $1000000000 and caps on the dogecoin price at $15000000. Howether, not sure if these are legit and they have changed in the past!
There is no 'cap' on the price of bitcoin. The price of bitcoin is determined by the market and not by its code.
Yes bitcoins are not controlled by even any big institutions or governments but bitcoin price is purely depends on demand and supply. If demand for bitcoin grow the price will grow.
Good grief, I'd love to be the boss of what demand in the bitcoin looks like for the masses aka adoption. There has to be discounts offered for bitcoin usage in that it's value is rewarded by its utility as in the low cost of acceptance compared to credit cards or so. The discount has to offer the locals an advantage and this should spread all over the damn country to get things rolling. People have to have the advantage in purchasing power before they'll want to use it for payment. Put simply, merchants need to offer discounts across the board and then let the price action move for those that are looking to get their product and pay accordingly. Let the partial profit reign into the consumer level.