I tried opening one in the US. That was not fun. What is the difference? As a Dutch person I had one in PT in 30 minutes. As a Dutch person opening in the US, AU and HK, it was a hell. What is the difference? If you are from those places, they won't know what you mean as it will be easy for this. As a Dutch person, you find it hard to get an account in the EU? Maybe if your info fails KYC, but otherwise it is trivial.
And that is not true in the US? I don't know but it takes a lot of effort in countries we did it outside of the EU. US banks are generally more gung ho on money laundering prevention and such so it seems hard to believe complexity will narrow the gap.