If you believe in freedom of thought and speech then you are a Zoroastrian
If you abhor lie and deceit and always seek truth and righteousness then you are a Zoroastrian
If you believe in the principle of equality of rights and duties for both men and women then you are a Zoroastrian
If your purpose in this world is to be happy by making others happy then you are a Zoroastrian.
Zarathushtra said: "ushtâ ahmâi ýahmâi ushtâ kahmâichît" which means happiness to those who make others happy” [Ushtavaiti Gatha, Verse 43.1]
If you care for the environment, including animals, plants, water and air, then you are a Zoroastrian
If you refuse blind beliefs and dogmas, and only rely on reason and wisdom then you are a Zoroastrian
But if you believe that to be a Zoroastrian, you had to be born into a Zoroastrian family then you have not understood Zarathustra’s message and mission.