The relevant case is people who have no income, but have a substantial amount of wealth (enough to buy a home). I'm not sure how you can consider that poor.
No. if you are poor, it is a real dynamic to get modestly frequent, but unreliable bumps in income. Of course these days there is no incentive to save that because of inflation, but if that weren't as much of a problem, you could consider saving up to buy a home, but you ABSOLUTELY cannot count on those sorts of things to sustain a mortgage payment, or land taxes. Like I said, you don't understand. Please, do not ever be in a place where you are making policy.
I understand what you’re getting at a bit better now, but you still haven’t explained why the current situation, where one needs to save 20% for the down payment, and then pay a monthly mortgage payment, is better for the poor.
Where are these places where the buying prices of land is cheap, but the land tax would be high? The buying prices is simply the year rent divided by some discount rate, so typically, the buying price would 20x the yearly rent/tax. That’s a large amount to have to save up (assuming a mortgage is out, like you say).