Yogurt was a new food for me when I went to university. I really liked it from the start, but I was raised in a household where we often had sour cream, cottage cheese and buttermilk. We were used to a dairy taste that was also acidic/tart.
If you want to start using yogurt gradually, I suggest you start mixing a small amount of natural yogurt with sour cream, and using it as you would plain sour cream. In my opinion, you could also mix it with mayo in a salad/spread. One thing I would suggest is fresh strawberries, dipped in brown sugar and sour cream/yogurt.