I own several guns... buy my little NAA .22 LR 5 shot goes everywhere. It is the gun you can carry when you can't carry anything else.
But more importantly, it is the gun you can go to when you are in a real bad situation... as I tell people either I'm on the ground with someone on top of me and have no other gun, or I'm creating space (shooting and backing up for cover -- or running if the other person only has a knife... lol). Yea, I know, none of you commandos would end up on the ground with someone on top of you.. lol... don't laugh at me...
I am baffled when I hear comments about a 22. First person I saw killed was killed in 1978 with one shot in the chest with a 22 from maybe 10 feet out. He will never beat another woman and she will live to kill another woman beater.
Second person I saw killed was knocked off with a 25 outside a club. Shot two or three times.
Of course, a 22 would not be my "primary" weapon.... and I'd like to think I can talk my way out of a situation before having to use such a small caliber... if you have no other choice, then it is better than nothing.