Generative Fill

Download the latest beta and see if this solves this. You may have to uninstall the beta first to see the new version available.
Adobe Photoshop Version: 24.6.0 20230603.m.2196 77b00e0 x64

Hi @Sally30256204cvy7 can you share a screenshot of the message? Does it say unavailable due to age restrictions or has this been working for you and is currently not?

If its an age restriction message:

If you find that Generative Fill is greyed out for you, it is possible that you may not have a valid Date of Birth associated with your Adobe ID account. To update your Date of Birth, you can do any of the following:
• Log into Behance with your Adobe ID and enter your Date of Birth.
• Log into your Adobe account and enter your Date of Birth. To learn more, see Error: "Not eligible to use Creative Cloud services".
Once your Date of Birth is up to date, relaunch the Photoshop (beta) app to enable Generative Fill.
https://helpx.adobe.com/photoshop/using/generative-fill.html

Be aware that if you have previously entered a DOB and you are underage, the date cannot be changed. If you have not previously added age verification, and cannot enter your age verification via Behance, Adobe Customer Care can assist you. Go to https://helpx.adobe.com/contact.html and log into the site. Click the chat pod on the bottom right and type AGENT to get a real person who can help. Be patient 1:1 customer care puts you in a queue. Or you can reach out on Twitter at AdobeCare