How could I know ?
I practice Aikido for almost half-my life by now, and all of my adult (post teen). I have no basis for comparison, what would have happened otherwise.
I do attribute some behaviors and tendencies of mine to aikido. Such as preferring not to get in a head to head confrontation and find some circumventing way to achieve my gaols with less resistance. But I am no longer sure if it Aikido or just my character ...