Jenise, my green tea epiphany was very slow in coming. Back when I was a regular French-press coffee addict, I enjoyed black tea but green tea just seemed so vile and nasty - grassy, unpalatable stuff.
I gave up the coffee habit quite abruptly early this year and my stomach has been better for it. That said, I also began to read up on alkalizing and acidifying foods and beverages, and coffee and black tea were definitely on the acidifying side of things, while green tea was said to be alkalizing.
I am not as well versed in these things as some no doubt, but I must tell you that sometimes I would get awful heartburn after coffee - but never has it happened once after drinking green tea - even with lemon juice, which is how I like it.
Nowadays, it's coffee that has become vile and nasty to me ... although I'm still a sucker for the great aroma.