No, the push to endless "know your customer" requirements is imposed on the banks by the government, via the regulators, for money laundering reasons.
More like the banks own internal processes devised be people who have misunderstood the regulations, or the regulators who have misunderstood what the law actually says.
How else can you explain the massively varying "proofs" accepted by different banks. If it was really "the law" specifying the detail, then all banks would have the same rules. In reality, some of the regulators/banks are making up their own rules, often far in excess of what the law actually requires.
It's exactly the same with the old "Elf and Safety" - even the Health and Safety Executive themselves (i.e. the regulatory body) bemoans people blaming ridiculous rules on Elf & Safety!
I'm an accountant. We have to follow identity proving and anti money laundering rules too. There's so much crap told from our professional body, insurers, regulators, etc., it's quite pathetic. Eg, at first we were told it was obligatory to actually physically meet all our clients - complete bullshit - the law doesn't say that at all, and when challenged, the regulators backtracked pretty quickly!