Or sport.
There is still this misconception that "competitive sports = neglect of technical development". Competitive sports gives the children something to really aim towards on a short term basis. It's the job of the coaches to ensure that children are developing in the meantime, that the individual goals that should be set for young players are realistically developing the players long-term. And it's theiur job to convey this to the children ion a way that continues to engage the children, regardless of result. Strike the balance between the two, and you have the best use of competitive sport with primary aged children.
Then it's the parents job to subscribe to this philosophy, rather than baying from the sidelines every time their cherub is tackled.
When they become adults, they play for the win. People need to remember though - in order to win, you need the tools to be able to do so. The only way you'll get these is by developing the technique early on.
Not sure why Cameron et al just mention the words "competitive sports", and expect it all to be OK overnight. Well, I do. It's because he's shit, deluded and opportunistic.