every currency should be written with their symbol at the end! (i.e. 10$)

1. a currency is a unit of measurement, and pretty much every other unit is written at the end (10 kg, 10 °c, 10 kWh)

2. it's closer to how people pronounce it, you say "ten dollars", not "dollars ten"

3. we generally already write it at the end anyway when using its 'code', like "10 nzd"