Here are my own thoughts:
Current weather situation (ie: Long sleeves in winter/short sleeves in summer)
Regional and cultural norms
Those ideas along with the numerous threads that have debated the “What to wear to Mass” and “What is Modest/Immodest” ad nauseum.
What do I mean when I state “maturity”? Here is an example:
My Hubby & I once lived in an area that was populated largely by Mennonite families. We were very young (20 years old), I had a great figure at the time, it was dead of summer - hotter than Hades. I went to the grocery store (the only one in the town) and wore what I was wearing at home at the time: short-shorts, a halter top (sans bra), flip-flops (we called 'em “thongs” back then, in the day before women wore what we NOW call a thong!), my hair long and flowing in the style of the year (1973).
When I got into the cashier line, I noticed several Mennonite women and children were deliberately avoiding me and staying away from the line I was in. One of the older women was openly giving me dirty looks. One woman pulled her small girl away from me as if I would contaminate her by close proximity alone.
I began to feel extremely uncomfortable, to the point of feeling absolutely naked. I could not WAIT to pay for my groceries and I fairly ran out of the store.
Now- why? I was wearing totally OK clothing, even stylish for the time.
Because I was immature! I was thinking only of myself and my own comfort - the comfort of others, the appropriateness, the persons I would encounter, never crossed my mind. There were the Mennonites, dressed in long dresses with long sleeves, cotton stockings, heavy shoes, caps holding their hair up off the face and hidden, ------- no wonder they all looked at me as if I were Jezebel come to life!
Similarly - one should think of the others who will be attending the Mass. Do not only consider YOURSELF…You are there to meet THE LORD and other people could be scandalized at what YOU consider “appropriate”. BE MATURE IN YOUR CHOICES.
The example above was also INAPPROPRIATE for what I was doing and where I was going! It would have been fine to wear to the beach or around the house. But to go “into town”, one must be appropriate to the setting - at least wear a T-shirt and longer pants!
I also was not being modest (for the situation) nor was I considering the “cultural norms” for the region and the people I knew I might encounter.
I hope this example helps the people who get all hot under the collar when appropriate Church clothing is discussed. I thought maybe an “everyday example” might make some sense.
Just my two cents’ worth!