What is wrong with these kids these days?

Ok, I was on the bus this afternoon. The route was going ok, better than the other days this week. Well I have my hyper, loud kids in the front seats. Well I have decided after today that I cannot sit them all together. They like playing and falling out of the seat and whatever else comes to mind. So I finally decided to separate one of them from the other two. So I moved him to the seat behind him to see how that would work out. Well he continued to fall out of the seat and bother other students around him. Well our school assistant principal has made a deal with the kids that if they are good for the entire week, then they get to get in a space bounce for free for 15 minutes. Most of the kids are very excited about that. Well this one student said that he didn't get in it on Wednesday and he will not be able to get in it on this coming up Wednesday. I just plainly asked him, "What is wrong with you? You know the difference between right and wrong, why can't you act right?" His response to me was "I am ADD!" Why are parents telling these kids that is the reason that they are acting the way that they do. My husband has ADHD and I have a mild case of it. Neither one of us are on meds for it. Shelby has been recently diagnosed with it and she is not on meds. She knows the difference between right and wrong and knows that we will beat her butt if she doesn't act right.
That just really urks me to know that kids are using this as an excuse to try to get out of trouble. Instead of saying "I am doing wrong and I admit it" they want to blame it on the ADD or ADHD. That is just crazy to me. I do understand that some kids have to have their meds or they are trouble and a half. But this kid takes meds! I hope that you see where I am coming from when I say this. I say this because I do have children, one of which has been diagnosed. But when she gets in trouble, she will tell everything under the moon but not that she has ADHD. And also nowadays, it seems like everyone has some kind of ADHD. The doctors diagnose most children that act out with ADHD. It is like it is a safety net for some parents. I hope that I don't offend anyone with this post, but it is just something that really bothered me this afternoon on the bus. I just had to get some things off my chest. Hope everyone finds the humor in this while also finding the sadness in it. Instead of parents raising their children, they depend on medicine.