Ok hear me out, this is something that (after watching bnha for a third time) stood out to me about Aizawa. (Aka: Eraserhead) For a man so driven by logic, his hair length is absolutely illogical. I will go ahead and acknowledge his hair might be a simple design preference, or not that important. Personally I love his design and the fact that he is a predominant male character with long hair. I wouldn’t have him any other way. Anyway, let’s get one with it.
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As pointed out by Shigaraki during their fight, while Aizawa’s quirk is activated his hair and capture weapon float upwards. This is a HUGE tell when he’s using his quirk which can lead to a disadvantage on his end. Shorter hair that already stands up a bit on its own would be less telling.
Long hair is much more time consuming to take care of even if the bare minimum effort is put into it. No matter the task, longer hair will always take longer (ie: Washing, brushing, drying etc) If he wanted to put the least amount of effort into his hygiene routine the logical solution would be shorter hair.
You can’t tell me that periodically getting stabbed in the eyes with his bangs isn’t 10x more irritating due to the fact that the man has dry eye.
Less important reasoning:
It gets in the way (when eating, if it’s windy, etc)
It gets hot (yes hair ties exist but that’s more effort)
MY THEORY/ PERSONAL HEADCANONS
Aizawa simply likes his hair long.
No matter how much he says he doesn’t care about appearances, everything I’ve pointed out above has shown that his long hair is illogical. So, why is his hair long? He likes it. He stated several times he doesn’t care about his public image, but what about his own image. Even when the mass media shows up to the school the reporters all remark about his shaggy appearance and he doesn’t even give them a reaction. He knows what he looks like and is okay with it or is at least content with how he looks in some fashion.
He possibly hides behind it.
He’s not the most social guy and he likes his privacy. He is easily read as an introverted individual and could even be read as being uneasy in social situations (In the sub comic: vigilantes, he is even shown wishing a villain would show up just so that he wouldn’t have to attend a social gathering) Physically hiding behind things (like his hair or even his capture weapon) can be effective ways to stim/calm yourself out in public/ social situations.
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Anyway, I hope if you read all of this that you enjoyed it and it makes sense. If you also have this headcanon please share some of your own reasoning behind it in the comments. Again, these are merely thoughts I had and wanted to share. I’m sure other people might have thought of this before. Nothing I said is confirmed to be true, simply put, it’s all just thought provoking. Is it an important part of his character or a simple design choice. Who knows.
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