Physically, long lenses have long barrels and it's easy to add a hood. Not so with wider lenses; they have short barrels. But lots of wide-angle lenses come with shades, they are just screw-in or push-on, etc. for example, all of Minolta's wide-angle Rokkor lenses were sold with hoods and cases -- and five year warranties.
If you have a wide-angle lens without a shade, they are easy to get -- and for zoom lenses, there are lots of adjustable hoods that you can change as needed.