The truth is long-hair are high maintenance regardless. The longer the hair:
- The more shampoo necessary to wash them
- The longer it takes to dry them, especially if you don't live in a warm nor dry climate
Maintenance is one of the reason in the military, especially during training and combat/guarding missions, hair is kept to zero and near-zero. Being in the military, especially in a combat, is the manliest profession you can have. Pure Mars rulership (and his higher octave Pluto).
Short hair is the most natural leaning for a man, while long hair is the most natural for a woman.
Personal choice is there, sure, but you're not supposed to spend 15+ minutes just drying your hair, nor leave it wet which can cause health issues in damp, mild, and cool climates. We have better things to do, goals to achieve.
Moreover, it just looks tidier and neater to have short hair, and they looks best on man just like long hair look best on women. Tidiness and neatness, organisation in general, are qualities ruled by Saturn. They are the masculine qualities of the Earth element.
Now you have an opinion both from a man (me), and a highly-accomplished and very wise woman (High Priestess Lydia). You can take it as you will.