No definitive answer, but FREQUENTLY Hotels use the older Mifare Classic ( xM1 , Flex M1 ) but Tubes/ public Transport etc are OFTEN DesFire, ( xDF2, FlexDF s ) The “Problem” with Desfire from our point of view is you cant change the UID and it’s not simple to just enroll it.
However there are some Transport systems that still use Mifare classic, it is just a matter of luck, and even if they have upgraded their system, they may still support their older system eg Oyster Cards in UK