Judo useful for self defense?

That's a bit like saying Brazillian JuJitsu is useful for self defence too.
Whilst you're getting all tied up on the ground, your opponents mate has just stomped on your head and kicked you to the kerb.
Don't get me wrong, ground fighting has its place. It's useful for self defence but arts which rely on it as a primary factor aren't really biased towards modern self defence since these days you don't find yourself going up against one attacker. Every fight I see these days is 2v6 etc, and in these circumstances I'd rather stay on my feet thanks very much!
/edit - oh and OP, Jujitsu.
