What would a British convict life have been like once he was sent to Australia?

by fiftytwohertz

Like many people, I know convicts were sent to Australia for their crimes, but what was life like once they got there? What kind of crimes could they have been sent for? Did they ever come back? Once there, how long were they punished? Did families ever travel with them? What was the youngest person ever sent? Oldest?

Doe22