Consider that if you have one bad neighbour in an apartment, then everyone on your floor will also be talking to them and helping to regulate their disruptive behaviour.
Apartments usually have concrete walls so you can't hear your neighbours. Unfortunately, there are some new builds made by developers trying to maximise profit at the expense of the residents who don't do this.
Gentle density is awesome too! Rowhouses, duplexes, low-rises: all great options for cities that are zoned to only allow single family housing.