What kind of a dryer? Because that cannot be right. Dryers require a 30amp 240volt dedicated breakers by code in most counties in most states nowadays.
It's a bosch heat pump dryer, but previously we had a traditional vented dryer.
I've never seen a dedicated circuit for dryers in Australia, and I've lived in probably a dozen different properties. Ovens, aircon, hot water, bathroom heat lamps often have dedicated circuits, though.