I wouldn't necessarily object to wearing t-shirts outside on a hot day, or maybe around the home sometimes.
Overall, though, I don't care much for t-shirts on women.
I remember what a religious Priest said in full thick robe to someone who said "Aren't you hot in that?"
His response:
"Hell's hotter".
I have always wonder why, when the temperature goes above a certain point, bare flesh solves all our problems? Seems to me keeping your skin in the shade, covered with clothing is not so bad. At least according to my experience, and that of my wife and daughters.
Oh dear it's above 80 and my arms are covered. How will I survive? Oh the agony. I don't thank I can make it through the day.
Also keeping covered is nice reparation for all the immodesty we are inundated with every day.
Some women just have to bare themselves even when it is freezing cold and windy. It is as if they are martyrs for the right to be the near occasion of sin.
Married too. What are they looking for?