grounded27 It is quite possible that, had such fines been instigated here - that they would have put such provisions in place. We know that it works because of the changes introduced by carriers to the UK, after fines were brought in for bringing in pax that did not have the correct paperwork.
However, this country still lives with the legacy of 'light touch regulation' instigated by La Thatcher. Unfortunately, as the world becomes more complex, you need ever tighter regulation. The present govt would say, 'If AI treat their customers badly (and save money in the process) then their customers will no longer use them and they will suffer.' If only it worked that way!
In this country (as in all others) nothing changes until either (i) Lots of money has been lost or (ii) People have died. Since neither of these happened - nothing will happen.
This time.