"""When my parents (both literate with no schooling) arrived in Australia, their priority was to buy and pay off a home. That was achieved in five years even though they worked in unskilled jobs."""
That was back when Australia was still the lucky country .... pity you can't see that this scenario can't be repeated today.
Unless of course you want to buy a caravan in a trailer park ... then you may pay that off in 5 years both working in unskilled jobs.