They are, but it takes time.
You’re in really weird situations right now. The decision in your area isn’t up to Brave, but is a decision made by Uphold and all. Important: Uphold no longer supporting countries in Russia, Ukraine, Belarus, and Balkans region
And to give other source, their official pages:
The link to Uphold shows non-supported, where you see Ukraine is on the list. The one to Gemini shows only supported region, where Ukraine is not listed. So therefore, you can’t be helped. Uphold used to serve your area but they stopped when the war began.
You can still earn and receive rewards. It’s just that you’re unable to withdraw them to an exchange. This does limit the practical use, as you can only either it or tip the BAT to Creators.
This is what you already can do. Each month you receive payout to your browser where it is stored.
Yes and no. Governments have requirements known as KYC/AML. On top of that, there’s special licenses that companies are required to earn and pay for in order to do business. If Brave tried to use their wallet, they would need to get these credentials for various countries and also would then have to KYC/AML all Users. This would be too expensive and also create issues in limiting who could use the browser. So Brave Wallet needs to remain separate, at least for now.
Again, all can access Rewards, just not move them to exchanges. Brave also is always changing this. Such as they just added France again and currently are working to bring back Brazil and India. Keep in mind they can only bring back the regions that are accepted by Gemini or Uphold. If Gemini or Uphold can’t give you an account, then Brave has no way to let you transfer BAT from your browser. So it’s very important you and others also reach out to Uphold to advise them that you’d like your region to be supported again.