So, one thing i've noticed a while ago was that while humans really CAN use aura for sensorial purposes and are also able to create aura orbs in their hands, we never see aura trainers kicking ass with aura or any of that stuff.

Living proof of this is that moment Sir Aaron is training his Lucario. I know that i might be not possible and those habilities were all plot convenince but if it's possible, could a human simply ignore pokemon training altogether and get a job as a cop or something using only his senses and powers to fight bad guys like something out of dragon ball?

Wouldn't that make a cool spin off?