Can I give a subscriber role to users on my WordPress website? Is it safe?

Can I give a subscriber role to users on my WordPress website? Is it safe?

You know a role has privilege, you can add or remove privileges or add new roles, see
 
 User Role Editor WordPress plugin makes user roles and capabilities changing easy. Edit/add/delete WordPress user roles
and capabilities.

wordpress.org/plugins/user-role-editor/

the above plugin can help.