I don't treat my kids equally

I don't treat my kids with equality. I treat them with equity. I give them what is FAIR. I've had my daughter ask me why does she get in trouble for things her brother gets away with and I've explained it to her. Her brother has brain damage and tourettes. He will randomly say fuck. i expect that. I expect her not to get smart with people and curse. Or if I asked her 10x to do something and she still hasn't done it I'm not gonna ask the same the 11th time. Her brother has brain damage and memory issues, so I may have to ask him 100x because he will genuinely not remember or start doing it and then remember something else and forget the other thing. Another example is my oldest who's 17. She knows to speak up when people are talking to her, my daughter who is 15 has social anxeity and gets very quiet. I don't get upset with her. I get upset with my oldest because she is doing it to intentionally be rude. I don't treat my kids with equality because equality is everyone gets the same thing and that's not always fair. They're all different and by that have different needs. This is also teaching them that in the real world someone may be getting treated "better" or people may be easier on them. And that may be because that person needs something different than what you need. I love them equally, treat them with equity.