There are a lot of places where Know Your Customer rules apply. Further, there are places where identity really does matter, such as insurance. The approach you outlined sounds like a headache when it comes to those things. Not sure who the headache is for... :)
Mostly because of the concept of “insurable interest”. Insurance pricing doesn’t hold up unless the buyer has a reason to avoid the outcome being insured against. The simplest example is life insurance.
Why do you question whether identity would matter?
Edit to be more substantive:
There are a lot of places where Know Your Customer rules apply. Further, there are places where identity really does matter, such as insurance. The approach you outlined sounds like a headache when it comes to those things. Not sure who the headache is for... :)