You do not have to use IE. There are lots of other browsers out there (I prefer Opera myself). You can use any browser you want to on the web.
You should not try to uninstall IE. It is integrated into too many other parts of Windows OS.
Just don't open it and don't use it. It is not hurting anything being on your machine and not being used.
What are my options? IE can it be replaced with another? and if so , how do i uninstall the IE?