When I am pushed in a crowded concert, I am not going to push back.
Why aren't you going to push through the crowd?
Because I'm not in shape anymore to do so.
It's good you aren't going to push through crowds anymore because that is wrong. Pushing through crowds could get someone hurt.
That is true. I do not want to start a fight or something.
That's fine. Next time you buy tickets for a concert, you should buy seats that way you won't have to push.