To Allāh belongs the kingdom of the heavens and the earth. He creates what He wills. He bestows female (offspring) upon whom He wills, and bestows male (offspring) upon whom He wills. Or He bestows both males and females, and He renders barren whom He wills. Verily, He is the All-Knower and is Able to do all things. [Surah Ash-Shura, 42:49-50]
It is the way how this Dunya rolls and it is the way how Allāh SWT has designed this Dunya to be. You may have something that other people have. And you may not have something that other people do not have.
Single people want to get married (and fast) because they think that's the only part of their religion that's deficient. Married people want to have children (and fast) because they think the only way they could truly be happy (and successful) is by having children. People with children want them to have the best of everything in this Dunya.
People with the best God-fearing children fear that their children would end up as failures in Dunya. And people with not-so-God-fearing children fear for their kids in the Ākhirah aspect. Married people want their freedom. Free single people want to be tied down in a commitment.
So the issue here is that we have to accept that regardless of what we want in this Dunya and regardless of whether or not we get it, we're still going to want more. And more. And so much more.
