This.

Also vacuuming and mopping are the quickest and easiest parts of the whole house cleaning process so it is not like it is saving yourself so much time anyway.

I do not have one, but as a pet owner, it is a tempting proposition. The task might be low effort, but it is enough that I do not want to handle it daily (or even weekly). Having a robot do a daily okay-ish job without intervention is worth something.

Wait why..? Most vacuums sold now make it easy to create no-go zones. The only thing I occasionally have to deal with is loose cables wreaking havoc