At least GB has wild card players like Robson and Watson who are then capable of moving into the top 100, which is why, unlike Ms Barty, they do not need them anymore. So they are clearly vastly superior to their much more spoiled Australian counterparts.
At least do some research before you troll. Watson and Robson were in their mid 18s when they made the top 100. Barty has recently turned 17.