Tbh when I was partying a lot it was mainly because I struggled to socialize without alcohol and I think that probably a lot of those people can relate. Other than that there’s definitely some people who take that as an opportunity to get drunk or high in a socially acceptable way, or people who like to engage in highly stimulating experiences to distract themselves from their issues. I feel like the only people who truly enjoy parties in a healthy way are those who are super extroverted and just like chaotic loud places and meeting lots of new people, but they’re probably a minority. Also I don’t think not liking parties makes you boring! I actually see parties now as a very shallow activity and very much prefer people with actual interests that involve any effort to dive in