I suppose, but only in the same sense as governments around the world tend to have mechanisms for non-residents and non-citizens to transact business or own pro

I suppose, but only in the same sense as governments around the world tend to have mechanisms for non-residents and non-citizens to transact business or own property. An Estonian identity certificate doesn't, on its own, allow someone to enter Estonia or live or work there. That still requires citizenship of Estonia, the European Union, or meeting other requirements.