Hi @Paul Hubbell ,
Are you using SharePoint Online?
For SharePoint Online, it is possible to restrict general users from creating sites through settings.
1, Go to Settings in the SharePoint admin center, and sign in with an account that has admin permissions for your organization.
2, Select Site creation. The Site creation page appears.
For more information, please refer to:
https://learn.microsoft.com/en-us/sharepoint/manage-site-creation
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