One of the reasons this question arises is that we feel we need to get to know someone before marrying them. Contrary to popular thought, dating is not an effective way to get to know another person.
A different set of skills is needed to be “good” on a date versus being “good” as a spouse. This may be a crude example, but in a business, certain people specialize in
Men and women are not as good at judging one another’s character as they are within their own gender. Even after years of marriage, spouses still have difficulty understanding one another because of gender differences. The petty disagreements that often cause couples to break up while dating, or while engaged, often boil down to how easily men and women can misunderstand each other. Hadrat Musleh Mau’ud ra stated:
Nikah, p. 476
On a date, both people are trying to understand one another, while being as presentable as possible and having emotions and gender differences to deal with. Islam teaches us to leave that which has more harm than good (Surah al-Baqarah, 2:220). We do not need to get to know the person we wish to marry; we need to know about them. We can find this out best through those who know them best, their friends and family. Also, we can consult their local Jama‘at office holders. There may be some benefits to dating, but the harms far outweigh the good.