pretty sure fruits nowadays are so selected to the point of junk food
banana/pineapple/mango/guava/grapes(!)/watermelon was never as sweet couple of decades ago...
“Our investigation found that more recently released commercial apple varieties have better storage capabilities, contain more soluble solids (sugars) and have less phenolic content. Recent efforts to improve our apples have been focused on keeping fruits fresh for longer and making them taste sweeter. With the expansion of global food markets and our growing preferences for sweeter tastes, these changes are indicative of the desires of modern society.”