Inna, it is a fine line to straddle.  There could be security issues by having too much personal information in your bio, yet most sane people like to know more about who they would like to work with especially if they are looking online.

I think you should because this is how people connect with you on a personal level. For those that don't I think that is alright too. If people know where you are from and what school you attended or hobbies you might just get a new client because of the common elements. On the other hand too much information may cause invasions into your privacy. There is a fine line.

My business comes from the benefits, results, outcome and solutions I bring to the table. 

Now, in the ever growing connection economy, the intent of such disclosure is to create familiarity. There are ways to do this without creating hazard and peril for those inportant to you.

Absolutely, because people identify with who you are!  And you want that

If you want to connect with people, maybe.

I have some, but not too much.