Covering great sports events, or taking other measures?

Covering great sports events, or taking other measures,
these two way of thinking about motivating adults for doing more exercise.

As I remember time of Olympics or World Cup championships in diffrent field of sports,
honestly it's exciting and motivating for me to be more seriuos about doing exercise
or joining a sport club.
 
But as anybody confirm that continues motivation is not outcome of watching sport events
even great ones such as Olympics, I think it's more related to cultural and life style changes.
This is not an easy to reach goal.
It needs decades of educational and cultural activities.
Also with respect to necessity of infrastructures, 
it is important to pay attention to economic indicators.

So, all in all, 
along with motivational actions, we should do more actions on fundamental areas.
Every 4 years we have one great sport event and it motivate people,
but not cars can not move just with fuel, it needs the road.