Why don’t Google and the others give an option to at least download user data once they identify the account to have violated some obscure TOS by some equally o

Why don’t Google and the others give an option to at least download user data once they identify the account to have violated some obscure TOS by some equally obscure algorithm? Like a one time download option for the user to take his data and manage it outside Google property (gmail in this case). I think this should be mandatory and perhaps it’s high time that it’s put in some regulation.