I don't think (programmatically) drawing everything is a good idea. Sprites have been used in computer graphics since time immemorial because they're easy to implement, maintain, change and can offer performance improvements as well.
Just imagine the hassle you have to go through if you want to change a programmatically rendered sprite as opposed to opening it in an image editor and simply changing it there.
Just imagine the hassle you have to go through if you want to change a programmatically rendered sprite as opposed to opening it in an image editor and simply changing it there.