Recently, a comprehensive cyrpto currency study was conducted by the university of cambridge.Although,it has revealed various aspects of bitcoin such as total number of wallets used,number of unique users of crypto currency wallets,but finally they have said that it is impossible to know precisely how many people use crypto currency.What do you think? Can we atleast get an approximate number of total Bitcoin users world wide?
No we can't approximate users of bitcoin because some people use many wallets and addresses due to anonmity of bitcoin they cannot trace who is that owner of that address and how many wallet he/she has that's why it's impossible. The only way is we have use a poll to determmine atleast estimated people in the world who use bitcoin.
It will be able to find only if the exchanges and all the wallets start to collect the documents of their users but I do not think it will benefit the bitcoin because it is against its feature anonymity so I do not think with any other way we will find the actual number of its users.