Gates sliding instead of swinging?

How do we feel about the gates built in FOBs sliding open and closed instead of swinging? It would alleviate a lot of the issues with people leaving the doors wide open, and I feel it would also be a bit more pleasing to the eye because the cool factor is always important.

In addition: I think it also makes sense from a security standpoint. Not like actual gameplay, but from a realistic perspective, doors with hinges are less secure than ones without from my understanding.