Vi editor difficulty in Ubuntu

Vi editor difficulty in Ubuntu

Hi,
I was using Fedora.
I shifted to ubuntu now.
In the first two days I was feeling difficulty with typing in Vi editor.
Up/Down arrow problem,Insert was not working properly.
And it won't show insert while we press insert key etc..

I didn't go deep to learn why it happens and how to learn those key shortcuts.
Rather I started using the Vim.

So Beginners,

instead of using
vi file.c
use
vim file.c