I hope the question is philosophical. Most of the world marries without having in mind any Mitzva. As for your Kavana, just as in anything we do, we should do it Leshem Shamayim. When we eat, we should have in mind the perspective that we are fulfilling Hashem’s plan and will.
As we see in the Torah, and as is self evident, we were created with this design, that we marry and are part of families. Some animals do it this way and some don’t. We were meant to do be this way. When it is lacking, the effects are visible.
Just like you can philosiphize about why we cry, why crying needs tears, why we laugh, why we vomit when we see something wrong (but only a certain type of wrong — as opposed to another type of wrong that makes us laugh), why we sleep, what is a wink, how do you remember, and so on; you can ponder the essense of family, too. You can come up with 25 reasons and the more philosophical the reason the less you’ll like it. However, this shouldn’t have anything to do with your real life decisions.
I don’t think there is anything wrong with asking questions like this. Nor do I think it reflects on bad Chinuch. Cheap answers reflect on a bigger problem than asking a normal question. Daas Yochid’s answer, in my opinion, hit the needle on the head about the point he addressed.