there is a middle ground between low and high density. there is no need for each home to have their own garden. but a multi story building with a dozen or more

there is a middle ground between low and high density. there is no need for each home to have their own garden. but a multi story building with a dozen or more families that can share one. take a look at some cities in germany. stuttgart, ruhrgebiet, and many others. they are actually a lot of small cities close together with lots of green space in between. each has their own shops, offices, schools, etc within walking distance and an extensive public transport network to connect them.