Sorry, but very few websites have the need to have full demographic detail (name, address, dob, etc.) on who I am. I assume many use it to establish demographic

Sorry, but very few websites have the need to have full demographic detail (name, address, dob, etc.) on who I am. I assume many use it to establish demographic profiles for basing advertising rates, or more nefariously, sell off to direct marketers. Also, that any data I provide about myself is stored in some other persons/companies database, with some unknown level of security, you will never get real information about me unless I have a real sense of trust of the website, and there is an obvious need for the information related to use of the website.