The modern complications and requirements of marriage resulted in the above social problem, which is a major problem resulting in bad habits and behaviors of these young men and women. we can't blame them, we should blame the society and the parents.
in Islam, as Mohammad, PUH said, "If a groom came asking for marriage, who is religious and with good morals, you must accept him, otherwise it will be a social crisis" or as he said.

there's no limitation of nationality or financial or social level.
and since we are very far from this, we have serious social problems, not only in Qatar, but also all over the world.

hope things will be better