I can understand you feeling that way, because all we've ever known is existing it's hard to conceive of not existing, but I suppose I'm kind of a nihilist at this point and it's hard to go on living when you don't view anything as an accomplishment, so I'd prefer to not have to sustain my own existence. But when saying that and thinking about it, I suppose I'm not thinking that much about the the permanence of it. As others have said, without this form of cognition, there wouldn't really be any way to regret it and it is inevitable anyway, so it happening sooner rather than later doesn't really bother me.