Hi and Welcome!
Here are the short answers...
1.No
2.No
3.Yes
4.Most likely, yes!
From the looks of the Avitar, your plant is doing well!
Bananas are always hungry!
Most will have "pups", new sprouts/plants.
Altho I don't know why they cover the fruits, it isn't necessary for home grown plants!
Read, read, read on this site and all the questions about Bananas will be answered!
Margie
(5 more days to ski trip)