Yeah same for too many of us
Yes you should do 2a if you can learn it. It's challeging but fun and can somewhat help you in life
Well since I've done 2a, I'm sooo much better at using my left hand, as well as using both hands at the same time. I guess it would be the same effect as if you patted your stomach and rubbed your heads for hours and hours.
But yeah I can be doing two completely different things with both hands and do just fine at it, but if I had never done 2a and tried to do these things, something bad would have happene.d
By the way, I like today's name, I think.
It also can help you to defend yourself against other people.