Do you guys/girls with braces brush your teeth at a restaurant restroom?

I just got braces and I am wondering about brushing teeth after eating at a restaurant. Do you take a toothbrush and brush at the restaurant's restroom or is that considered wrong to do?

I brush after every meal and would like to know if that is okay at a restaurant.
Do you guys/girls with braces brush your teeth at a restaurant restroom?
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