This is one of those things, like acupuncture, that I will not fault anyone else for engaging in. There’s no hard evidence that they are effective, but if it helps you with your problem (even if it’s all in your head), then it was worth it, was it not?
I know people who have had their lives improved and their mobility restored thanks to chiropractors. I also know one or two who swear they got scammed for years because the pain always comes back really quickly.
I may not personally recommend a chiro to someone as a solution to their back or neck pain, but I won’t discourage them from going if they are considering it.