Is having to arrive 3 hours before departure efficient

Just heard that to catch an international flight from Australia one must arrive at least 3 hours before flight departure.
Domestic flight? 2 hours before departure.
All one has to do is use the self serve electronic check in terminals to confirm plus check in baggage.
That should be a smooth process, yes?
Airlines are treating passengers as mugs

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whowasthatmaskedman · 70-79, M

This is why I wont fly any more. The flight isnt fun (it never was) But from leaving home to the plane, and getting off the plane to getting to the place I am going is a nightmare. I would rather drive or take a train, not being in a rush now..😷

Gusman · 61-69, M

@whowasthatmaskedman Getting to the airport might take 1/2 an hour to 1 hour.
Getting from airport to destination at least the same time frame.
Ridiculous amount of time.

whowasthatmaskedman · 70-79, M

@Gusman In my case, it takes an hour at 4 in the morning. Double that at peak times.😷