I really do not understand why people open trading accounts with unreputable firms. Would you open a bank account with a non regulated bank in a small third world island? Probably not so why open a trading account there?
There are a few very reputable brokerage firms where almost everyone can open an account remotely quite easily.
Citifxpro, Interactive Brokers, Oanda...
Also, the commonwealth is not the same thing as the overseas territories. It is true that the UK has overseas territories and that they are connected to the mainland in laws and regulations (with some differences) but it is untrue that commonwealth nations are in any way connected to the UK in terms of regulations and laws.
There are a few very reputable brokerage firms where almost everyone can open an account remotely quite easily.
Citifxpro, Interactive Brokers, Oanda...
Also, the commonwealth is not the same thing as the overseas territories. It is true that the UK has overseas territories and that they are connected to the mainland in laws and regulations (with some differences) but it is untrue that commonwealth nations are in any way connected to the UK in terms of regulations and laws.