it can be messy or neat, classic or modern, worn up or down. More length means more options.
It seems like short hair is low maintenance but that’s not always the case. A great cut with tapered sides can go longer between barber visits. A half inch of growth on a shaved fade changes the shape of a haircut entirely while that same growth on longer hair is just more length.
Some of these longer cuts also have fades or tapers, which look good growing out but do require regular barber visits to maintain.