Xenia I don't think education and financial security is enough. Women have a viable route out of violence in this country - Women's Aid and other charities might be stretched, but they exist and offer an extremely valuable service. There are also other supported routes for women to leave abusive relationships. The practical side isn't really a barrier for women in the UK (I am aware it must be elsewhere.)
In my experience the practical considerations or other tangible, easily understandable "barriers" such as fear of retaliation are quite often put up by women themselves because they don't want to face the fact that they do have a choice to leave and that they are making a choice to stay, for intensely complex, confusing and difficult reasons, none of which are their fault, none of which can be easily addressed by a support service. This is the stuff like traumatic bonding, stockholm syndrome, as well as women believing that the relationship (especially if there are DC involved) is her responsibility and that if it goes wrong she has failed, anger = passion beliefs, love = abuse, unhealthy relationship templates picked up from childhood, belief that this is as good as it gets, feeling that she should be grateful, believing that only some kinds of abuse are "real", an overhanging tendency to believe on some level that as a divorced woman or woman who already has children she is "worth" less, a myriad of other related and unrelated things.
This is the stuff that it's hard to change with things like policy - some of it goes back decades and isn't generally accepted as truth any more, but if enough of your friends and family believe something, most people don't challenge that, at least not for a long time, even if most of society is giving a different message (and in fact, it isn't - many of these messages ARE reflected in/supported by society in general.)
What would help in my opinion:
More understanding of how abuse works and where it comes from (ie the abusive mindset.) Understanding that physical abuse is a symptom and that ALL abuse is emotional abuse and that emotional abuse/control is at the heart of all abusive behaviours. Abusers don't think they're doing anything wrong, even when it's pointed out to them in black and white. They might know hitting, for example, is wrong, but they don't believe that it's wrong to prevent your girlfriend from going out with her friends. (So in absence of hitting they just fall to other, more subtle abuse techniques and continue to excuse PA as "I snapped - she pushed me to it. I had to.")
Abuse victims taken seriously, reports followed up, lines/dots joined up - rather than treating crimes/incidents/complaints as separate issues, why don't agencies get to look at the whole picture? Abusers don't just abuse once and then magically change and turn into good people, because they believe they are justified in their actions.
Protect children. The current system where unsupervised access is seen as a goal to work for is a joke. Non-abusive parents, of course, should be able to see and develop relationships with their children. Abusive parents should not be allowed to "work towards" unsupervised contact until the DC are old enough to express an opinion AT LEAST. Protect children and the next generation have much more chance of going on to form healthy and non-abusive relationships. It's a cycle.
General changing of attitudes within society towards women and men and VAW.