Well the discuss about abortion is really taking a center stage especially with the freedom enshrined in almost all countries constitution.
Morality was taking a center stage, that it bad to take a life and in some countries, it is a crime to abort but such countries also go to war and bomb even hospitals where the sick and helpless is recuperating. It is really a wide topic and I will just say it is a choice.
Some people have purpose to avert a new life to be added to the family, whether health wise or not, whether logical or not is left for couples.
About reducing the number of population like we have some Asian countries having that as policy, I think with the reality of economic hardship, homes in Africa and new couples are already having the mind not to procreate more than what they can take care of.
Abortion is a problem for the mother, and causes extraordinary pain that can cause death. This is controversial in society and is prohibited religiously. Another reason why people are determined to have an abortion is due to promiscuity and the man's irresponsibility, so there are medicines or concoctions such as herbal medicine to dilute the fetus in the womb, there are even massage shamans who want to do things that are prohibited by that religion. What can be prevented is that families continue to monitor their children and also that community leaders must make these regulations stricter so that they can be more controlled when there are people who have bad habits.