The push for them to do this will not make it a choice for them... the whole travel industry will undergo a shift, and this will just be the tip of the iceberg.

True, Aussies do have it pretty bad. They seem to have been a target for some of the most draconian measures thus far, but surely this level of tyranny will soon follow in Europe.

https://www.irishtimes.com/life-and-style/travel/covid-jab-ryanair-will-not-ask-for-proof-of-vaccination-within-eu-1.4417851 This article shows some hope for Europeans, however I can't see them totally scrapping that idea, especially considering things like Health Passport Ireland being already in the works.