The whole reason why martial arts exist is to teach people how to fight- that is essentially what a 'martial' art is - it is a form of fighting - if you're not actually learning how to fight then you're essentially just role playing.
Certainly the pair work in karate, the light sparring for points and the 'Vs' etc.. in JuJitsu were essentially role playing with a compliant partner.
nah I think Judo will be fine.
I think Wikipedia makes my point much better than I could write it:
Initially, the object of martial arts was self-defence and the preservation of life. Today, these needs do not continue to constitute any longer the primary reason for participation. Training in martial arts imparts many benefits to the trainee, both corporal and spiritual. Through systematic practice in the martial arts a person's physical fitness is boosted (strength, stamina, flexibility, movement coordination, etc.,) as the whole body is exercised and the whole muscular system is activated. In connection with the learning of correct breathing techniques and an improved and wholesome diet, martial arts are an effective way of fighting many problems and diseases of contemporary society and sedentary life, and, generally, of a weakened immune system.
Self-control, determination and concentration characterize the trainee, who always reacts productively and without stress when the circumstances demand it. Self-defense, then, and strong self-control result from serious training. Each individual learns about themselves, and not only do their capabilities improve, but also their sense of respect and justice.
According to Bruce Lee, martial arts also have the nature of an art, since there is emotional communication and complete emotional expression. Martial arts may also be described as a way for the individual to discover themselves and their environment.
I'm guessing you'll think the above is a load of BS though.

All character building as my step dad would say lol


