Account deletion requirement

In my app, we don't support account creation directly when user opens the app. We only provide it when an authenticated user who has purchased our system wants to add a user. Also we only provide organisation accounts to be added and the person who added the account has the access to delete the account as well.

Do we still need to provide a user option to delete their account? We actually don't allow this as per our principles we follow in our system.

I agree account deletion should be user's option. However, a user can't create their own account in the app and can't access the app. We don't record any user's data if a user is created. This is the reason we are not able to provide support for account deletion in hands of the user.

Basically we don't provide sign up in our app is that correct that we don't require this account deletion option to be done.

Can anyone guide me if this account deletion still a requirement in my case? Thanks!