that’s not an excuse, it’s justifying a breach in halacha.
i struggle with murdering ppl, i can overcome the urge 90% of the time, would that make it ok?
a woman’s test is tzinus, and although it might be a hard test, it’s just as important as shabbos and everything else out there.
on a side note, many woman simply look better when the skirt goes past the knees, nothing to do with halacha, i wonder if they realized that.
the woman that struggle with weight look ok with a long skirt, but when you wear short and you sit down, the overweight issues are there for all to see.
think about it!