I grew up on grassfed. I never had grainfed until I was an adult. Honestly, grainfed is so much better. I'm the same way with salmon. I have probably eaten thousands of pounds of wild salmon. Then I discovered that farmed salmon is better. People argue with me about this. I think they are fooling themselves. They want to believe that the grassfed cattle and wild salmon are tastier, but it's just not so.
We do not inherit the world from our parents. We borrow it from our children.