No, that’s not it. You are seeing your experience (and the experience of people around you, all living in the same society at the same time) and extrapolate that to the “very human nature”.

Just go back 50 years and you have all these structures making it easier for men to keep contact. You had fraternities, churches, unions, clubs, associations and so on, all designed to pick up young men, give them structure, give them contacts and help them being part of something bigger. All that failed some time in the 70s or 80s with the individualism movement that valued individualism over every kind of group.

If you go back even further, social structures were even stronger, with even things like arranged marriage being commonplace in many societies. In societies where that was common, there was no expectation at all that a young cis man would have to approach women at all.

Don’t extrapolate your experience to all of human-kind. It is almost never correct.