What is the impact of enabling the 'Prevent users from creating personal sites' setting in SharePoint Online?

Enabling the 'Prevent users from creating personal sites' setting in SharePoint Online prevents users from creating their own individual SharePoint sites, which were traditionally known as 'My Sites' and now relate to the creation of modern self-service sites. When this setting is enabled, users will not be able to create classic My Sites or modern team or communication sites through self-service mechanisms. This setting helps organizations maintain control over their SharePoint environment by limiting the proliferation of unmanaged or poorly governed sites. It is important to note that this setting primarily impacts self-service site creation. It does not prevent administrators from creating sites on behalf of users. Also, it does not affect the user's OneDrive for Business, which is a separate personal storage location. If an organization wants to maintain a structured and governed SharePoint environment, enabling this setting can be beneficial. It helps ensure that all sites are created and managed according to organizational policies and standards.