It's not, unless you want to start a family. Then the whole vetting process disguised as "dating" is kind of important with significant life-changing returns.
Personally I decided I didn't want kids decades ago, it drastically changed the distribution of priorities. I, like you, simply can't be bothered with dating now. It's just not worth the time and effort, risk of STDs, risk of pregnancy, risk of crazy, drama, etc.
Having said that however, there is something to be said for having a reliable partner in old age when hospital visits and navigating the healthcare system becomes a regular activity. It's problematic to be alone in a hospital, for a variety of reasons.
