It's good that you've been able to help out your kids TLOBS and I am sure they have worked hard, but 'hard graft' alone won't get this generation anywhere now.
The ladder has been kicked away from them and without someone like yourself stepping in to help your kids, they have no chance.
20 years ago I would have completely agreed with your comment about not maxing out on a mortgage, when interest rates are low or borrowing beyond your means.
As I explained earlier, Northern Rock would have lent me 8 times my salary when I bought my first flat. Fortunately, I didn't have to do that and I borrowed 3.5 x my salary.
People in their twenties aren't in that fortunate position. They are having to borrow 8 x their salary simply to buy a basic property. Combine that level of borrowing with interest rates of 4% / 5% / 6% and it's a very dangerous situation.
But we all have to live somewhere and you can either buy or rent (which is dead money in my view) and that costs a fortune too!
You could move to somewhere with much cheaper house prices or rents, but if that area doesn't have jobs then it is no good to you.