You would just have people bitch. It's like Sea of Thieves, it's a cross platform game and you got people complaining saying PC is too unfair because of mouse and keyboard, so they gave them M&K support now people are saying it's still unfair because we load faster and have higher FPS. So now they are working for an opt out crossplay solution.
I hear in borderlands 3 it will be cross platform for xbox/pc but Sony is refusing to allow it.
You don't understand what I'm talking about clearly. I'm talking about when you buy a game that exists on multiple platforms for a generation you should either have access to it on all of those platforms or a very large discount on the game for those platforms. It has nothing to do with cross-play.
When you said play with people on other platforms in your last post I thought you were referring to crossplay. That's more likely to happen, what would stop you buying a game on xbox, getting a free or reduce copy for PS4 and just giving it to your friend? No company in their right mind would do this.