DD wanted to play soccer this year. Typically, soccer season is filled with rain, cold and lots of "but I don't WANT to play." This year, she was ready for it, the weather has been decent, so . . . let's play soccer!
DH is not "officially" a coach, but is often called in to help out. Sometimes, he gets to sit on the sidelines and visit with friends/family. Soccer practice and games are as much a social opportunity for parents as a recreation opportunity for kids.
I'm definitely a sideline kind of parent. My little nice KK hung out with me last night.