I do think that many people make too big of a deal of church attire.
I also want to point out, I’m a fan of looking good and well-dressed for church.
I do like wearing suits once in a while.
But, what bothers me is that many people, I feel, try to say that God doesn’t approve of certain looks.
I honestly believe, God could care less, as long as our worship is God-centered and God-focused and our hearts are the same. As long as the worshiper is there to worship God and none other, everything else is secondary. Of course, I don’t know that for sure.
However, I think this is more of a ‘me’ issue than a ‘God’ issue.
Like the worship wars, it’s not really about what God prefers, but what we prefer.
And what we wear, it’s more about what we feel is right.
I think that the dress code is a modern variation of the circumcision issue in Paul’s day.
Whether you were circumcised or not, it didn’t matter, as long as there was a circumcision of the heart.
I, though, still haven’t explored the wearing of jeans to lead worship on Sundays yet.
Maybe one of these days, I’ll give it a whirl.
Joseph Yoo 
Most everywhere in both church and business the dress code has been relaxed. At my UMC, youth will wear jeans but rarely adults. I probably dress more casual (in khaki type pants) than other women do there. I’ve visited some large non-denominational churches and during their contemporary worship services, the ministers wear jeans – the high priced ones. To me, it seemed very forced as if they were really trying to make a statement about being casual.
I lead two services in our church and I’ve worn jeans a couple of times. For the “non-traditional” service, I usually wear khakis and a polo. For the “traditional” service, however, I wear a robe over whatever else I’m wearing.
I’ve had one person question me about it, and the answer satisfied her.
But it seems that our associate pastor is always getting flack for his clothes, even when he intentionally dresses up for the “traditional” service.
Or maybe it’s that nobody has the guts to confront me, the senior pastor.
What about dress codes outside the context of worship? I was told that the informal rule of district meetings and events is a collared shirt and no jeans. Yeah, I ignore that.
Because of heel pain due to plantar faciitis, I wear black Vibrum 5-fingers (they’re flat-soled toe shoes). The make my feet not hurt so much, and I kinda like not limping. I was told by my mentor (I’m an elder candidate serving as a student local pastor in a different conference than I am a member), that another pastor at district check-out day wanted my mentor to tell me that I shouldn’t wear those shoes, as they were inappropriate for a pastor to wear. I don’t wear them to preach, but I wear them every other day.
I’ve never had a complaint from a congregation member, even after I preached in my “camp uniform” which consists of a camo boonie hat, tank top, gym shorts, sandals, and a camelbak. Oh, did I mention that my goatee was dyed bright green?
At what point are we gonna realize that the old ways aren’t always the right ways?
There’s a pdf file at site linked reviewing church history on clothes, specifically, notions of alleged sex differences. Sex differences exist but cannot include who wears a skirt and who does not. This is all foolishness! Pants are an equestrian invention of bloodthirsty Mongol invaders. That does not make trousers barbaric—though the Greeks and Romans thought so—Rome exiled men in pants in 393AD–but what is uncivilized is telling members of either sex “you can’t wear THAT because it’s opposite sex attire.” Transgenderism? It ONLY applies to men in bras or women in athletic supporters. On November 13, 1866, Pope Nicholas I, in a message to King Boris I of Bulgaria, replied to the King’s inquiry as to whether his subjects could become Christians EVEN THOUGH THEY WORE TROUSERS—“Whether you or your women wear or do not wear trousers neither impedes your salvation nor leads to any increase of your virtue.” All churches claiming to be inclusive yet reject a man in a skirt are engaged in false advertising! Christ has no objection per se vs men in skirts, see His remarks to the (SKIRTED) centurion in Luke 7.
Regrets, I intended to have it read “866” not “1866” and confusion re attire has been around way longer than that already. Social forces cause clothing behavior, whereas, reason and personal liberty should be the cause.