You don't speak for me.

Really think removing that is just a waste of time that they could actually be implementing other things that actually make a difference. This effects no real life anything, and actually kinda like my age will be showing 20 years old soon.

I understand where the request is coming from. However, hiding the SL birthday may serve as protection for mischievous alts, griefers, and scammers.

If I may be so bold as to weigh in on this matter:

I fear that the idea of hiding ones' account creation date is something that should not be done nor suggested. There are i near-infinitude of bots and griefers who make one-off, same-day accounts with the sole purpose of flooding areas or evading bans. Currently many areas have age bans to prevent such behavior (alongside bans based on payment information on file and used, etc.).

In addition to preventing such groups from entering areas, the use of the account age information also serves a secondary purpose - to protect YOU against a land owner or property holder arbitrarily banning you for not having such, or by claiming you to be an age you are not and thus making the assumption you are a bot, etc. To this, you can effectively point to your account age (whether to the land owner / administrator, or, should the dispute go further, to a Linden Labs employee)

Thirdly, to be fair - the information does not in any way reflect real-world information nor compromise actual privacy. It is assumed that someone joining Second Life is already at or above their local age of majority, thus people begin with the assumption, right or wrong, that you (the account holder/user) are 18 or so years of age at minimum, and possibly older. With the length of a normal human life span, this places you reasonably between 18 and 85 at start, a span which is as reasonable as IRL guessing someone's age from their typing.

I wonder how a account age can be a privacy concern .. it leads to zero rl information.

Hello, and thank you for your feature request regarding the option to remove or hide the birthday from profiles. This is indeed an important privacy concern for many residents. We wanted to let you know that another resident brought up a similar request in the past (BUG-234256) in Second Life's previous bug tracking system. We are merging your comments with the existing issue to help us address it more efficiently. While we don't have an estimate on when this might be implemented, please keep an eye on future updates. We appreciate your input and hope you continue to share your ideas to help improve Second Life. Thank you!