[MayeulC]

Bananas are awful when not ripe. In temperate climates, most bananas are harvested before they are ripe before they are imported, and they taste so bad it took me a few years to get used to them. They're just grainy, hard, and tasteless compared to a banana that matured on a bunch (even if that bunch was cut from the tree).

It could also be the variety, I'm not sure.

[nsenifty]

Even the bananas that ripen on the plant (turned yellow and all) need some time after harvest to convert all the starch into sugar. They still taste a bit starchy right after the harvest.

[hesarenu]

Raw banana is used to make delicious "podi"(oil fried batter), even some other dishes as well.

[flowerlad]

Stir fry made from raw banana is delicious: https://www.pachakam.com/recipes/kaya-mezhukkupuratti