Is it safe to remove an original administrator user in Google Workspace?

I have an administrator and a normal user in my Google Workspace subscription.

I would not like to pay for two users when in fact I use only one.

I gave administrator rights for the normal user and set its e-mail address as the main contact for the Google Workspace.

Logging in to the admin console with the normal user now I am able to remove the original administrator user. Is it safe to do so? I would not like to lose my Google Workspace.