Dude lol I have a 6 pack and I'm 11 but the thing is i do swimming every day for an hour, and not just fun swimming i mean competitive swimming since im on a swimming team. I also do push ups every day and sit ups every other day. Just start doing push ups and planks and you'll have a 6 pack in no time
two months if you work really hard.
400 what?
An 11 year old has exactly the same amount of muscles as an adult. You can have whatever size "pack" you want (although an odd number pack may appear slightly strange).
A 9 year old does not need a 6 pack. A 9 year old needs to run a LOT. If he/she runs as much as he/she needs to, they will develop a 6 pack sooner than anyone who does not run as much as they should.
i do!!
yes.
9 months
yes, as long as you don't take advantage.
Depends on the person
No, not legally anyway.
Yes
entertainment