Yeah, don't listen to anyone about what to get.
What would target/match shooters, hunters, military veterans, sworn or retired LE officers, certified instructors or training cadre, FFL holders, CC license holders, or armed professionals
know about firearms.
I'd add that the posts about not using the .22LR for protection have merit.
I follow the "use enough gun" plan. Some gun/tactics members stress shot placement & marksmanship as the most important points but I think having a round or caliber that can work correctly in a critical incident is worth considering too.
CF