Those are rare events in any one individual's life. Even assuming those metrics aren't already reported to the IRS, you could still have them file manually when

Those are rare events in any one individual's life. Even assuming those metrics aren't already reported to the IRS, you could still have them file manually when something exceptional happens. There's no reason that for most people in most circumstances couldn't have their taxes done automatically most years. Exceptions will always be the rule and our current processes handle them. That does not in any way exclude the usual cases.