I do not think this was ever a part of the driving test in my state. Maybe it depends on the area you live in. I do not think it should be a requirement. If I had the choice or parrallel parking between 2 cars or parking some where else and walking as far as half a mile.... I would park some where else and walk.
Parallel parking was always my thing. I don't do it as often as I use to but still love it. There was plenty of time I have been with some one and we had would have to hope in the driver seat just to parallel park the car.