this is seriously restrictive to anyone wanting to get into bitcoin, like its meant to be pseudonymous but if the gate ways into bitcoin dont allow that people will be put off.
Maybe because they are in a tight security relative to the exchange of the bitcoins. I remember, there are a lot of ICO being offered today and somewhat, people are being a skeptic if the currency is counterfeit. There are a lot of rumors this day that cryptos can also be counterfeited so I guess it is just part of the protocol they are following to be secure in the transaction they made.