I can't speak to the Aussie restrictions but pushing money from your US bank account to exchanges in the US is still possible for sure.
Discussion
Here in Australia it is very hard.
Many banks outright decline any transactions to exchanges. The ones that remain place strict limits on monthly transactions that are impossible to remove.
I would hate to be a no-coiner today. I do not know if I could buy a whole coin even if I had the money sitting in my account.
have U tried local meetups? tap into circular econ p2p?
Peer to peer is still an option but not one that most will be able or willing to do.
Bitcoin is already hard for most people to grasp and without easy and "safe" onboarding routes most people will be left behind.
Outside of face to face meetups Bisq and Robosats are the most recomended P2P platforms and they are very light on liquidity. I had a look a few days ago and there were no $AUD offers.
So yes it is still possible and there are ways around it but it is getting harder and harder for the average person. Some see this as a victory as it pushes bitcoin underground and off KYC exchanges where they feel it belongs but the reality is that bitcoin staying in this realm will prevent mass adoption.