Mass Chat: Hats on or off in church?

No longer a big deal.
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This winter I have noticed men with hats on in church - even during Mass and while they receive communion.  The past couple of weeks I have noted three different adult men doing so.  One guy had a beret on backwards - which is always a cool look to be sure, he was with his wife and kids, all finely dressed.  Traditionally men tipped their hats to ladies, or when passing a church out of respect for the Blessed Sacrament, while etiquette dictated a gentleman always removes his hat indoors - especially when in church, or in the presence of someone/someplace holy, etc..
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Now it seems to me the men I've noticed doing the opposite should know this custom.  I only mention it because it surprised me.  I didn't much care, really.  I wasn't distracted but for a second in fact.  After all, it is winter and maybe these guys have that neuralgia disease Mother Delores Hart suffers from.  Or maybe they don't want to be seen with "hat hair" - although what's the difference between that and the ever popular "bed hair" look.  I can't tell the difference.
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Of course women were once obliged to cover their heads in church and now few do.  Again - not a big deal - although hats or scarves often look better than mantillas - in my opinion that is.  I hate mantillas worn with some out of date, worn and dirty ski jacket over a denim skirt hovering just above the tops of her Sorels.  But I digress.  I just find it interesting that men now wear hats in church and women rough it these days wearing nothing but hair-coloring on their pretty heads.  It's like a bit of role-reversal, gender confusion I think - very unconscious to be sure. 
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Of course priests and clerics wear birettas during Mass... and Knights of Columbus wear hats with maribou... but that's another Mass chat, isn't it.