No because I know how computers work and it won't work the way you think. That character that is out on the street, will know your name, not your address. The most they will know is maybe the city you are from. No need for them to know anything else, so they won't. That character will know I am standing in front of them or within a couple feet, but once I leave that area, that character will not be able to track where I am going next. There is no need for that and therefore it won't be built into their interface.
The IT folks will have the most information out of anyone. That is always the case. We have full access to the database and all the data available. We also sign agreements on how we will or will not use that information and well you just have to trust that. But you trust that at your bank, medical facilities, credit card companies, loan companies, the company you work for, etc. Because everywhere you put your personal information in, IT has full access to it. Now only the IT folks working on the system. The person working on the ride computer system will not have access to the same database as the reservation system. Also, the guy working on reservation will have more access than say the guy working on the system that gives the characters their names. So even sometimes IT folks are limited based on the database they have access to. For instance, in my company the HR IT people have access to people's pay, but the person working in the finance system does not. Even though they have access to employee data for expense reporting purposes, the salary information is not passed onto them. So you say 1000's of employees, you might not realize that while 1000's may have access to bits and pieces, not all 1000 will have enough to tie everything in. Only a handful of people will have that information. Then the handful that do, may not have the resources to even do anything with it.
No system is perfect and I know that working in IT, but I have to have some level of trust or I would live in a box and not be able to do anything in this new technology age. You could drive yourself crazy with what if scenarios with how people use your information about you or your kids. I see that with my in-laws. But I just can't live that way.