I would not try to make them into "jocks" if that is NOT their thing, nor their talent, nor their physical ability... nor the type of kids they do not naturally connect with.
Why... must a child have to... play sports??? I always wonder that myself. It is not a mandatory thing, in life... to be a 'jock'.
And no... organized sports... will NOT "fill a social niche" in your son's lives.
AND no, they should NOT give up... their natural talents/lessons... just to do sports. Do NOT take that away from them... your sons.. have really really great talents... and you should keep, nurturing that and SINCE it is their interests.
I always tell my kids... that everyone has a 'special' talent... and everyone is different... you don't 'have to' be like everyone else.
I really do not see... why some kids are forced into sports... when the child themselves has ZERO interest (or talent) in it. In this vein, a child is just learning to 'please' other people... and not listening to their OWN identity and talents.... and sense of self-confidence.
Sometimes... children "lose" their special talents... BECAUSE it has been socialized out of them. And...that is very very sad. Because once a 'talent' has been socialized out of a child... they will often not regain... that talent again... or they will lose... that talent and ability.
Think about that....
It would be a great disservice to them... if they are made to play sports... just because. Let your children... be who THEY are. To follow their OWN hearts.... and talents.
THAT is... always, the best.
It is not about trying to be someone else... or to be just like everyone else...
all the best,
Susan