Is there any compelling reason to keep my land line phone?

I’m tempted to disconnect my land line phone. I don’t call out on it at all and very seldom does anyone call me on it, maybe once every two months.

Are there any worthwhile reasons to keep it? For 911 calls? For proof of resisdence? So various politicians can leave me messages to vote for them? Some other reason? I see several old threads that people have done it, but not much on any downside or reasons not to do it.