I think the answer is found in 1 Corinthians 10 by principle. While we have great liberty in Christ, we must always be mindful of not allowing our liberty to cause others to stumble. If this is just one persons opinion, I wouldn't worry to much about it - but if you are getting this a lot, then I would cut my hair. Hence, we shouldn't allow fashion to be a cause of the weaker brethern to stumble. It is no different in principle than partaking in alcohol. I can imbibe freely with my Reformed brethern and enjoy the pleasures of spirits without it causing them or me a conscience problem. But I wouldn't drink in the presence of many Baptist brethern because they tend to see it as sin, so I curb my liberty in respect for my brother's conscience and put them before myself on Christ's account.

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Thomas Weddle
Member, Covenant Reformed Presbyterian Church
Evansville, Indiana