I was travelling abroad and happen to visit casinos but i was in flip flops and as per the rules a proper attire was must. I was not being allowed inspite of me explaining I cam from abroad and will be leaving tonight and was not aware of such policy etc. But they where strict with the rules and I had to return back form their.
Even you're from aboard there are no excuses, we should respect the rules of each establishment. Definitely, you will be kicked outside if you're not following the rules. It's normal for an establishment, even government buildings, they require pants or proper attire when entering.
That's the worst experience but you've learned that rules are rules and should be followed.