i am older than 18 but rated underaged

[Madelaine McMasters]

Hi Stella,

This is a resident-to-resident forum. We have no power to address your issue. Open a support case here...

https://support.secondlife.com/create-case/

Select "Account Issue" from the first drop-down and "Change Account Details" from the second. Describe your problem in the text box provided.

Be prepared to offer some proof of your age to LL.

ETA: I should have read your question more carefully... a lot more carefully. Alwin is almost certainly correct.

[Madelaine McMasters]

Hi Stella,

This is a resident-to-resident forum. We have no power to address your issue. Open a support case here...

https://support.secondlife.com/create-case/

Select "Account Issue" from the first drop-down and "Change Account Details" from the second. Describe your problem in the text box provided.

Be prepared to offer some proof of your age to LL.

ETA: I should have read your question more carefully... a lot more carefully. Alwin is almost certainly correct.

[Alwin Alcott]

Stela,

most likely it is that the parcel you want to visit isn't open for visitors under 30 days.

Some owners use that restriction to prevent griefers come in with new alts all the time.

[Innula Zenovka]

Residents like us have no way of knowing what date of birth people gave when they signed up.   The only thing you can tell is that people on adult regions must have supplied a date of  birth that makes them 18 or over.

As Alwyn says, you must have encountered a security scanner that keeps out new(ish) accounts -- the date the account was created is public information.  

So long as you can access Adult regions, you can sure there's no problem with the date of birth LL has on file for you.