A man trying to walk into a restroom today will still be stopped. Men cannot go into women's restrooms, only women. If you see a man walking into a restroom and you think you should say something, then say something or do something. You won't get in trouble. If you happen to stop a woman who looks like a man you'll likely be embarrassed, but does that matter if you think someone is in danger? She might get mad at you too and call you names, but again, is that important if you think someone was in danger?