The majority of fruit that turns up in our supermarket is grown for that purpose. Varieties that don't bruise, are easy to pack, and transport (often long distances). Varieties that grow out-of-season, in greenhouses etc. These are characteristics that don't over overlap with taste, hence what we get from the supermarket. It's pretty dire most of the times. I bought a punnet of British plums the other day. Utterly tasteless. A few weeks back we were Kent and stuffing ourselves direct from a tree, and there was no comparison at all. Utterly lush, aromatic and sweet.
In the last few days I've eaten those plums (tasteless), a mango (tasteless), and some strawberries (weirdly bitter).
To be honest, I can understand why a lot people don't eat much fruit, what's available is often pretty horrible.