Thanks for reaching out. Just to confirm, do you have any strike on your channel? Channels that have demonstrated more “risky behavior” will not receive access to Stories for example, channels with 2+ strikes. Let us know.
Thanks for the confirming. As a next step, we'd recommend sending a feedback report directly from your YouTube account with these steps: https://yt.be/help/FQA4 . While you may not get a direct response, we do review and use the details to investigate and fix issues.