As someone who has spent a considerable amount of time assisting high school students to transition to the workplace, all I can say is this....
You are free to do whatever you want to do. The opinions of the people posting here, including me are just that, opinions. However one thing you need to take into account is that we all see things differently and everyone is entitled to their opinion.
When someone's opinion is just words on a forum like this, it has few or no consequences. However when the opinion is of someone sitting across a table from you deciding whether to employ you, then I think you will find that like it or not, their opinion will affect you.
So please consider what you want to do in life and how you plan to get there. If your going to be a self employed artist or musician, ear stretching could be a good career move. If however you would like to be in a public professional role like customer service, marketing, hospitality or anything that involves representing a brand or company and facing the public, you must be prepared for the fact that some people will judge you on these things and that those judgements may limit your oportunities.
Yes it sucks, yes people should live and let live.... but life isnt like that. People judge and people think their own values are the only ones that count. We all do it.
Just make sure that when you decide to say "screw it Im doing this anyway", you are prepared for the possible consequences.
Good luck