I generally tell people the only reason to do it is if your career pursuits require it, and even then I warn them away unless they're really sure. Not every research advisor is abusive, but many are. Some without even realizing it. I ended up feeling like nothing more than a tool to pump up my research advisor's publication count.

It was so disillusioning that I completely abandoned my career goal of teaching at a university because I didn't want to go anywhere near that toxic culture again. Nevertheless, I did learn some useful skills that helped me pivot to another career earning pretty good money.

So I guess I'm saying it's a really mixed bag. If you're sure it's what you want, go for it. But changing your mind is always an option.