They are because, you have to take them home, and then eat them and you are not going to eat them in one day. Otherwise they will get ickey.
Bananas are green when not yet ripened, yellow when they are good to eat, and brown/black when they are rotting and going bad.
When they are yellow.
No, green bananas are under ripe. Bananas go from green to yellow to brown (ripe).
Ripe bananas reach sweetness, unripe stick a strange flavor to your tongue. Ripe ones are normally yellow with brown spots on the skin. More spots, riper it is. Sometimes, particularly on cold wheather, bananas may get ripe without spots, but all yellow.
Because they are 'ripe'
Yellow.
Usually yellow. But it depends on how ripe they are. If they're not ripe yet, they're green, if they're over-ripe, they're brown, and if they're rotten, then the're black. But when they're perfect, they're yellow!
Because the person that decided that, liked bananas and bananas are yellow when ripe
Bananas sold green will become yellow and ripe within a day or two.
If you mean "bananas" then yellow when ripe, soft when ripe, and long but slightly curved.
because the outer core deserts
Answer They say green-tipped bananas work the best. Answer I say just peel the stupid banana and eat it!