At risk of going on a slight tangent (that dressing up is part of, but hits on a larger point), I think Dibble hit on something very important here that is a major problem with American Christianity:
This is an indicator to me that you don't give a damn about God, and just want to go out and have fun. You make church service about you.
Many people seem to view the concept of church as though they're going out and purchasing a product, selecting only the pieces that they
want. We've deleted so much of the difficult part, anything requiring some degree of personal sacrifice. Even the Catholic Church has wattered down the church disciplines for laity to where any remote degree of effort makes following quite easy. We've deleted almost all of our days of fasting and abstinence from meat. We've made receiving the Eucharist so easy that it is the norm to receive it every week. By doing this, we have removed much of the constant reminder of the pain and suffering of Jesus dying on the cross for us. Everything now is a celebration, which isn't necessarily all bad but it needs to be done in context, remembering just why we're celebrating. And that's the Catholic Church....let's not even get started on the Protestants!
By relaxing the rules so much, we have set up a scenario where we take the view that it's all about us all the time.
We choose what type mortification to practice (if any). And by doing that we are no longer subject to obedience to things we cannot control nearly as much. It's really individualized. It's like we're ordering a plate of self-help with a side order of forgiveness and an Our Father.
Heck, have you even finished reading the Bible cover to cover yet? You've had ample time since we had that conversation, but you probably haven't bothered - is the word of your god too boring for you to bother? I don't really give a damn that you don't dress up for church, I give a damn that you don't take your own beliefs seriously. Intellectual sloth like yours is a blight upon humanity.
This is something to keep in mind, but not really a huge deal. For example, St. Thomas à Kempis argued:
It's important to try and understand one's faith, but way, way less important than actually trying to live it.
