to each his own
but objectively speaking thats inapproriate to wear in public unless you working out, on way to beach or bout to get called on stage at gentelmen's establishment.
I am sure its in the airlines discretion to decide whats approriate attire and all it takes is one employee making it an issue.
she had the chance to change but decided not to and the situtation became a bigger deal
based on attire, the way she & her sister escalated the situation, the lack of accountabilty and her sister getting arrested...for the 1st and hopefully only time in my life...I am riding with Spirit on this one