I feel passionate about dressing up for mass (e.g., differently than everyday). Since we’re both body and soul, we should act consistently–for example, professed religious wear habits, and the priest at liturgy wears vestments, to reflect their spiritual role. I try to use as guidance a sense of what’s appropriate. Since mass is different than any other activity–heaven meets earth, after all–some kind of distinctive treatment of the body is in order.
Besides dressing in “business casual” (or better), I have been led through prayer and counsel to wear a headcovering while in the presence of the Blessed Sacrament,
for my own frame of mind, in modesty, and to remind myself of my place before God and my husband. I do this without any implication that anyone else should follow along on my account, and I try to be relatively inconspicuous, sitting in the middle or back of the church. :byzsoc: (BTW, my 20-something daughters don’t veil.)
On some fourms, objections have been made saying that in corporate worship (like mass), all present should behave alike and not draw attention to any individual. This is usually brought up when people express some kind of piety (e.g., kneeling for the Eucharistic Prayer when there are no kneelers in the church). However, this principle is rarely brought up for people who wear immodest or inappropriate (soiled, uncared-for) clothing, or have inappropriate behavior (chewing gum, going to the bathroom at the moment of the Consecration). :banghead: I sometimes offer the awkwardness I feel wearing my veil in reparation for the offenses to the Blessed Sacrament by the practice of immodest and inappropriate dress and behavior before Him.
In charity, I believe no one should be judged as to their outer garments. :tsktsk: It may be appropriate for one who cares for small children to dress more casually, and it would be a shame for someone to miss mass because of what they are wearing, for example, clean jeans, when the opportunity arises to attend. But, in general, dressing up for mass keeps St. Francis of Assisi’s “Brother (or Sister) ***” in line, and enhances prayerfulness and reverence.