Since there's different needs (I ansolutely really want my bind, httpd, crond and others to restart when they die - I have no desire to log in and do that manua

Since there's different needs (I ansolutely really want my bind, httpd, crond and others to restart when they die - I have no desire to log in and do that manually), you just opt in to the auto restarting in the .service file - systemd does not restart anything by default.