https://www.abc.net.au/news/2021-12-08/wealth-transfers-and-... discusses the situation in Australia.
For children, it would generally better if you could give them money while you are still alive and while they are at a stage of life they will benefit. Yet over here we tend to have tax and financial laws that discourage that. Or for the more radical socialist mindset, if financial security of your children is what you are after it may be better to massively tax wealth and fund proper social security.
I don't think it's maintainable for a society long-term.
Not that I don't understand your emotions around it, it's logical.
I get the emotions behind wanting to leave inheritances, but we'd be better off as a society long term if we had better safety nets and systems instead.