Are all couples who can have children qualified enough to be parents?

Are all couples who can have children qualified enough to be parents?

Nowadays more people believe that its not necessary having kids to be happy in life or in there marriage but there is some couples thinking that they need to have kid if not are gonna be unhappy. The true is that to have children the people has to be stable in every sense, in personality, financially, romantically, if is in other way the kid are goona be raised in unhealthy environment, whit ungry aggressive and unhappy life.