Quote Originally Posted by Naoki34 View Post
Don't you read what they tell you or what?

You need 1 licence and sub per connection.
You only buy on the platform your friend is going to play on.

--- You can't avoid it. ---
He’s talking about using his PS4 account on PC, which needs a PC license to do.
Then his son’s account in PS4, which also requires an additional license, assuming it’s currently PC.

He’s worried/wondering if he has to have a total of 4 licenses to play 2 subs., which unfortunately is a “yes”.

@OP, per SE:
Logging into the Same Account on Windows®, PlayStation®3, and PlayStation®4
It is possible to play with the same account on the Windows®, PlayStation®3, and PlayStation®4 platforms. Customers who own a copy of FFXIV for Windows® and wish to use their account on the PlayStation®3 or PlayStation®4 version will need to purchase an additional copy for the desired platform. In order to use your characters on multiple platforms, you must tie your existing service account to the PlayStation®3 or PlayStation®4 version upon launching the game on that platform for the first time. Similarly, customers who own a copy of FFXIV for the PlayStation®3 or PlayStation®4 and wish to use their account on the Windows® version will need to purchase a copy of the Windows® version. However, please note that your account will only be able to log in to one platform at a time.