Does evasion matter? As we've discovered in the last few weeks, SASTA get paid whether a train has zero or a thousand people on it. If there's no incentive to collect money, why does it bother the rail company if thousands evade the fare?
[pedant alert] should be 'alternative' not 'alternate' - alternate means every other (because of work, we can only attend alternate matches).
Strictly speaking, alternative should be one of two but colloquially its use has expanded