That's more of challenging the idea of community, which I would disagree with. We need community to survive. Relationships, "love-focused" ones specifically, are not always due to insecurities. I would also argue you are young (comparatively) and many/most of your peers are probably around the same age. People are always going to be inseure, but as you grow older those insecurities (usually) change, and thus "mature" relationships result. But usually all the prior bullshit has screwed your mind so much that you don't know how to have a proper relationship in the first place anymore, regardless of maturity.