So...people are quitting. A lot. Now, I don't know if this a prank (if so, not cool XD), but if not...
We need to accept it.
People come and go. Hopscotchers can't be expected to stay on forever, especially if they have valid reasons why they need to let it go.
Don't let this ruin your day. Adapted from a quote I saw, don't be sad they left, feel happy for all of the awesome memories we had with them. We'd rather have them quit and be happy, and not staying while feeling horrible.