Why should a company care what my actual birth date is when entering contests? Why not just give a date by which you must be 18, or whatever the age the minimum for the contest is. At the very most, just ask a year of birth. My birth date is used by other actual important places to verify that I am who I am and I certainly don't want some stupid contest form to ask me...Personally, I've never been overly concerned about dates of birth on sweepstakes entries. There are two reasons for this: the first is that sweepstakes sponsors have good reasons for asking for the date of birth. For example, they use date of birth to comply with sweepstakes and information gathering laws and to determine eligibility. Also, the birth dates of the entrants help them to get a better understanding of the people that they are reaching with their promotions, which allows them to target their advertisements to be more successful for them and more attractive to the people who enter their sweepstakes.
It was not so long ago that age ranges were used on contest forms. While I understand that this is the way the company tells what their target audience is, I don't like the fact of my birth date or physical address being a mandatory item. They are losing out on just getting any of their information to me because I frequently just refuse to enter or give false information on these areas.
The second reason is that my date of birth is part of my public record. It is not difficult to find that information; there are a number of online companies that will supply my birth date and more for free or for a small fee. Any determined identity thief would have no difficulty at all obtaining this information.