My Barrister, a deputy District Judge, once said to me "Mothers that do this with young children hold a lot of power. It's not right but it's the way it is and what you will have to do is take that power away bit by bit until she doesn't realise it's gone."
So I did, and it took several years of being calm, civil and not responding to threats and attempts to retain control over my through our child, as well as several court orders all in favour of my child and me. It seems now, that I am there.
The only genuine reason I can think of for a mother to be given more importance upon separation is if she is breast feeding. Even if the mother was the primary carer, well, dynamics change upon family separation and the important thing is to cause as little upheaval as possible for the child. But this doesn't mean that over time a new routine can be introduced so the child can have the full involvement of both parents.
'Primary carer is bounded about as though it's a law, 'if mother was primary carer whilst father was out working full time for the family then it must always remain that way.'
I think the system supports separated mothers to a far greater level than that of fathers. In fact, upon separation we are often treated as disposable.
Not all fathers have lots of money because they have been out working whilst the mother is at home sacrificing a career for the children.
Many of us are left homeless, lose jobs due to stress with no option but to face the daunting task of fighting through courts for our children whilst the mother does her very best to thwart contact to little or no punishment, can carry on as normal and as 'primary carer' receives 100% of child benefits.
I even faced some of the 'well you must have done something to cause the mother to behave this way' from a few people. Even after several years of court, facing allegations that my ex was actually guilty of, not me. And clearing my name, I bet some people would still suspect I was responsible for my ex wife's behaviour because mothers, they're just incapable of behaving badly aren't they.
I would guess that there are people seething whilst reading this thread as they will perceive it as an attack on poor brave single mothers.