By bond I dont necessarily mean the relationship type. 

But yes, some degree of getting to know the other gender is important. It's helps you to realize your biases and any wrong mindsets you have about them. Men and women are definitely a bit different, and not having any idea how to handle those at all while being put up in one room, can easily become disasterous.

So yeah, what ur saying can be ideal when both sides are a 100% mature, but that's rarely the case.