You have pointed out the most important thing
Never cross words and never any problems there so I always think that there is hope for Humanity when I go to these events and people are kind and polite. As they should be
These events are meant to bring people together and not to separate or upset them. This is mainly for kids and they need to learn to interact with other people and also to handle situations where things don't go as planned. What they see as kids, most like is what they do as adults. So it's nice to see the event is/was successful.
The other good thing is that it's for free. Life is hard enough as it is, no need to stop people from attending just because they can't afford it.