National stadium pitch size

Would it be possible to decide the size of the pitches when managing nations?

I know there are nations that don't have a national stadium if I'm managing england I think I should be allowed to decide the size of the pitch that complements my play style.

ive never understood why pitch sizes can be different from pitch to pitch.

surley there are regulations that a pitch has to be a certain size, otherwise its massivly unfair to any team going to that pitch?

Because some styles of play benefit from a smaller pitch while others benefit from a bigger pitch.

The point is to benefit yourself and potentially cause a disadvantage to your opponent before the game even begins.

There are regulations.....pitches have to be within a certain size. This is why you are asked before the season starts how big you want the pitch to be.

I just want to be able to do so on the international level.