By coming from a home where you have your father and mother treat eachother right and with love and respect the children get to pick those experiences and grow with it as they get to grow from a loving home. A lot of trouble couples happened to be persons who grew up from a violent experienced parenting scenes where the home was truly a home and this has to affect their behaviour when they grow up and get married.
even if you have two mentally healthy people with positive attitudes.
even if they find each other visually attractive
they may find out in a few months-a year that they are not compatible
marriage should not be something to happen just because you got the other person pregnant
marriage should not be something to stay stuck in just cos of the kids
its always better to get to know who you are with and have compatibility to increase chances of success long term.
EG imagine you get married. you want kids, so you rush to marriage in a month and then inform the other partner you want 5 kids.. then find out they have infertility
EG imagine you are someone that loves pets, you rush into marriage within a month. but then find out the partner is allergic
EG imagine you love seafood or meat.. you rush into marriage within a month then find out the other person is vegan
..
many people that rush into marriage without thinking, without planning, without getting to know the other person,. are usually people from broken homes that never experience much affection. and so as soon as they get the smallest piece of positive attention and the smallest amount of affection. they grab at it and hold on.
this is where things go wrong in itself,. the feeling of being to clingy, rushing things, and then feeling trapped or guilty if you mention your uncomfort
.. so it is important to get to know someone before deciding on a ceremony/contract that suppose to be about lifetime commitment