On the other hand, people need other personalities to complement their personalities. Organizing this environment is not simple for most people, as it requires a complete different set of skills than most technical work.
People will have to enter a company to get this environment, as it is already created for you. Usually not well created, but something is better than nothing.
IMHO Paul Graham acquired these skills from his now wife, thanks to that they created YC and you have all this environment of mutual support, the "family", the "Church".
It always surprising when you go to the US, how isolated most people is from each other.
This makes PG advice extremely damaging for most people in the US. The technical people that will listen to it are already not very social. Without social support, you will perish. No matter how good you are, people are social creatures.