They don't marry people with children because of fear of interference from the Ex 

I think you have a point Lebo. The cause of this is our selfishness. We often do not want inconveniences. For example i have 5 children with 4 dependents and have separated from my partner. Now I ask myself what if I should get a partner with children or not. But the answer I arrive at is to get one with one or no child because thinking of a family car that would be suitable. I realised I might have to buy a Toyota quantum because even a 7 seater won't be ideal

Having children out of wedlock will always be problematic and has no solution. God knew this and that’s why he created marriage and nuclear family and doesn’t condone sex before marriage . It is the best way to avoid all these problems. No baby mamas , baby daddy drama . no soul ties. marriage is likely to last because there is no comparison to anything previous partners etc . Children grow up more stable and balanced human beings.