They have separate accounts... because PS4 you can't use the same account... it's because my account is on 3 PS4's...

And only 1 can be the main...

I was just wondering because there's an add on

https://store.playstation.com/#!/en-...00000000000502

That allows you to use your same SE account on multiple PSN...

I have been looking this up for a while... if it was that simple you really think I would be doing this... actually read my question...