The were cousins they grew up literally twenty feet from each other.

Yes Phil was a great deal older but again this was a blood family all living in the same compound.

Yes I believe Phil absolutely did "drop in on him" it was the grandmother he was going to see.

Yes I do believe he told his cousin to get the fuck away from his father, absolutely.

And I'm even thinking Phil may have shown back up recently with the passing of his youngest cousin Mark if there was a service.

Who would he be afraid of? Its been established he didn't testify against any of the old family guys (sans one per Sonny Liston) who's going to kill him?

I know he'd have to be careful but again realistically who's going to kill him?

For who for what?

Sr is going to pay off a 500K bounty? I wouldn't take that bet.