Well it looks like the son/mom are looking for validation/recognition that Julio is his father. This matters to some people. The suit doesn't mention that they are looking for compensation (YET).
I didn't know they can rule on paternity w/out DNA evidence. Regardless, Julio comes off horribly. If you are so sure that is not your son then why not submit to the paternity test? Look no one can force him to have a relationship with a child, but if he was willing to have unprotected sex then he should've taken responsibility for the repurcussions from those actions.