Getting a job with long hair?

So, today both my parents decided to barrage me with more requests to get my haircut and warnings that I will never get a job/end up working at Mickie D's the rest of my life.

My question to you gentlemen/gentlewomen, is it possible to get a decent IT job for some business whilst also being a male with long hair and/or facial hair?

If not, then I'd think that'd be some form of discrimination and I should be able to sue or take some kind of legal action...this is assuming I'm a perfect candidate for the job position and the only reason why not would be my appearance.