Hall Area Not Suitable to be too Small

In feng shui aspect, the hall if it smaller than the bedroom area, it will affects those who are living in the house.

See digram below:

Recently, a friend of my asked me why his family members when reach home, they will head striaght to the bedroom; nobody likes to stay at the hall area.

My replied to him, "Are the bedrooms bigger than the hall?" His replied, "YES!"

That is correct, this is only one of the problem. There are problems such as:
family members will interact less,
slowly,they act like independant party,
family members will not be co-operative,
and more serious, each will go their own ways.

So my advise to those whose house layout are as such, please quickly rectified it.