Yeah absolutely. We can't just upzone. We need to also make sure the State Government is building the schools necessary in the local area, Council needs to build public parks, as well as other amenities like libraries, public pools, etc. They also need to enable local businesses like shops to exist to serve that density through mixed-use zoning. Those parks themselves need to have a mixture of amenities, too. Small pocket parks, parks with playgrounds, parks with facilities for various different sports, larger rewilded spaces, skate parks, maybe some tiny street playgrounds.
We also need to start rethinking how we design our roads. To encourage taking public and active transport, and to make people safer to play and get around in their local streets, we need to reduce the ease with which people ratrun through local streets by reducing permeability and designing them to discourage higher speed driving (think: 30 km/h as not only the speed limit, but the speed you feel comfortable driving at), without reducing permeability for pedestrians and cyclists. Because higher density just cannot be feasible if we continue our current insane levels of car dependency.