Neglecting standing is a big mistake.  However, a couple good points have been made.  Such as this:  I think without takedowns, jiujitsu is for everyone..  With takedowns, it's still for most people, but probably not everyone.  If you want to compete at expert, or become a professional grappler, or do mma, you must have a developed takedown game.  And the requires starting from standing often..  Advanced classes, mma classes, wrestling/takedown/judo classes can fix that problem without running off the pussies, I mean, beginners.