Girls, why do you never wear a sports bra?

Anonymous
Girls always seem to complain about how 'uncomfortable' there bra is and how they can't wait to get home and take it off. So I was wondering... how come girls don't wear sports bras, which seem more comfortable, for normal day to day activities?

Do you wear a regular bra because you think it's 'sexier or cuter' or because you think it's 'expected' of you? Or do you not think sports bras are more comfortable? Or what causes you to wear a normal bra for day to day activities over a sports bra?
Girls, why do you never wear a sports bra?
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