What happens if an unqualified person chants the Gayatri mantra?

From: Aakash

To chant Gayatri mantra (the famous one), a general person is not qualified. So if one chants it, what is the impact on his life? (considering that one doesn’t chant it as per the surrounding conditions mentioned in the scriptures.)
What is the impact if a devotee chants it who is not initiated?