You did all you could;

I was so eager to try a new pylon racer once when I was younger that I turned up at the field it was blowing a gale, and you guessed it: I took home a bag of matchsticks.

But I came back and so will they..... I just put it down to experience and they will probably do the same, I guess they are like me we know better and don't learn from other's mistakes (hope i grew out of that), wish I had listened to advise on more than one ocassion.... you shouldn't feel bad at all, the world needs more compassionate people like you.