You're just missing genuine community and human interaction. It is a huge lack of it in today's world. But you can fight back just you know group up with your friends and have that lan party you miss
You will always be welcome to play some games in my home, if you're ever in the area. I have multiple computers so we can always play lan games.
But what I mentioned is what I hear most of the time when I ask people if they want to hang out. They don't have time, too busy, etc. Maybe it's me and they just don't like me?
Ironically in our group it's the people with kids who have the most availability/flexibility to meet up, but the ones who are single or don't have a family who are always busy.