If falling house prices are so problematic, then why do governments allow house prices to rise so sharply? If house price stability was explicitly a part of ou

If falling house prices are so problematic, then why do governments allow house prices to rise so sharply? If house price stability was explicitly a part of our central banks' mandate, we wouldn't have such ridiculously low interest rates, people wouldn't be borrowing vast multiples of their salary to buy a house, and we wouldn't have the sword of damocles hanging over us in the form of another property slump.