These tips are offered often and are presumably working for someone. As someone who has followed or tried to follow them for most of my life, there are lots of ways these tips might fail to serve:

  - Places you visit often might be fundamentally antisocial: e.g., a gym where everyone wears headphones.
  - Tickets to popular events (AC/DC) are astronomically expensive and sell out long in advance.
  - Inviting people who you don't know well to smaller, local, less spectacular events tends to bore people.
  - If someone is your first local prospective friend, inviting them and only them out constantly can stress an already tenuous relationship.
  - Introducing people to each other may reveal that they don't enjoy each other's company, so now they're both less interested in hanging out with your group.
  - Your prospective friends might have no local friends of their own, so they depend on you disproportionately for all of their socializing.
  - Your prospective friends might not drink alcohol or enjoy hanging out in bars, so hanging out at a bar no longer feels very inclusive.
  - Some people have a tight budget and don't deal well with the perceived obligation to spend money when out with friends.