For someone who has posted a lot of this thread and is clearly passionate about the topic you are sadly misinformed.
Do you genuinely think people with student loans are unable to get a mortgage?
And your reference to 49% tax etc is ridiculous. It’s 0% on some earnings, 20% on some, 29% on some, and then 49% on the top bit. It’s not 49% on everything so not a 49% tax in any shape. There’s absolutely no guarantee your children will be such high earners anyway.
Do your children know of your potential future plans to ship them off to another country? Emigration is a big thing and many young adults wouldn’t want to move countries.