Hello @Fredmab,
As of now, VRChat is gradually rolling out the age verification update to beta groups and select individuals. If it hasn’t yet been made available to your group, you may need to wait until it is. However, if your group is of a considerable size and you believe it might be eligible for early access, I recommend reaching out to VRChat Support for further assistance.
In the meantime, you can join the waitlist for future updates by visiting VRChat Age Verification - Home. Opting in for early notifications will ensure you’re alerted when the feature becomes available. Alternatively, you can look for groups that have official links to the age verification process and follow the steps provided.
Once you’re on the list, you’ll receive an email with a request to complete your verification.
For more details, feel free to check out the Age Verification FAQ on the VRChat Ask Forum.