1. It is rather rare for players as young as yourself to be allowed to play. Airsoft in Canada is a predominantly 18+ sport. The less common exceptions made for minors are usually for those between 15-17, and often requires a parent not only to be present, but also play. Many regions completely forbids minors from playing at all, regardless of parents.
2. Airsoft is not a cheap activity. $300+ is the minimum requirement for a basic gun. Real airsoft is to what you see at Canadian Tire or WalMart a BMX bike is to a tricycle. You should not consider airsoft unless you can afford to invest in reliable equipment, as cutting corners generally leads to disappointment. Since you're only 14, I would recommend you save up for the time being.
"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."