Was there a single person who at least was kind enough to just disappear? People have for far less, but something about Youtubers just prevents them from doing that. Must be the sweet fame or something.
So there's a few reasons for that (speaking more generally) -
First, there's the fact that your average YouTuber is more or less unemployable outside of YouTube content creation if they do it full time. We're seeing that happen right now with the YouTube channels that are pushing up to the two decade period of being around. YouTubers essentially have a gap in their resume unless they have a side venture they can put on there. In the case of Chugga, he's probably been doing this for so long that his resume will look like a joke compared to his age.
That's also why so many other YouTube types are looking into secondary ventures; think dunkey moving to game publishing and Matpat stepping back to become a CEO; they're all somewhat more mature jobs you can put on a CV and they'd indicate usable skills. Meanwhile those who don't branch out (won't name names, but plenty of "lost glory" types are out there) are getting hit with the fact they're getting washed up and are turning into caricatures of themselves to make sure their only income stream doesn't get worse. Newer batches of content creators also rarely go full time without having some sort of secondary shop to back them up if shit hits the fan (two non-gaming examples are LegalEagle who runs an attorney office and LTT who have a computer repair shop - even if their channels go bust some day, there's a business and experience running that business that's still a usable skill). The reality is that putting YouTuber on your CV might as well be a death knell if you have to enter the job market again.
The second reason is just that we're social creatures and being a YouTuber tends to limit your friend group to other YouTubers. For most people, our main social interactions will come from showing up at work every day and going home at the end of the day. If you have friends, they often also have that same schedule - you can plan hanging out around the "default" 9-to-5, 5 days a week, work week.
YouTubers both don't have that and have the additional problem that most of their friends will be online. YouTube work schedules make often almost no sense; people work until late at night to get their videos edited and the nature of YouTube overly favours constant upload, which tends to ruin weekends in favour of irregular break days. This means hanging out with people who work a 9-to-5 is less of an option. You'll end up hanging out with people who can expect similar strange work schedules and who themselves have that same ability to have irregular free time in their schedule. Due to this, most YouTubers will have friends who are themselves also YouTubers.
Finally because most of those friendships will be online (since "being a YouTuber" doesn't map nicely into one single city block on the planet), those friendships can be very fleeting. Getting rid of a publicly known online friend (which YouTube also encourages their creators to always be, since cross-pollination encourages channel growth) is technically only a block button away and YouTube communities have generally shunned the notion of private friendships with individuals who have a bad public reputation (just look at the amount of "bad person X showed up at YouTuber Y's wedding, clearly YouTuber Y is just as bad" type of drama we've been seeing lately). In a case like this where you're publicly shunned, this can leave someone with the idea they have nothing to fall back on, which tends to result in them desperately seeking affirmation from online strangers that yes, they are well liked since they don't have a private friend to fall back on and talk things over with. (Think the really good friend who will listen to you vent about your ex after a bad breakup and affirm everything you're venting out about a bad relationship even though they have no stake in the game but know it's good for you to get that out of your system - most YouTubers don't have that really good friend; they instead take that conversation, which is really important to be able to "move forward", to the general online public.)
Of course, not everything here applies to Chugga in specific, but broadly speaking this is why YouTubers are seemingly incapable of vanishing from their online life; it's their main (and often only possible) job and they don't have a good offline social network to fall back on.
