Weddings and funerals in Australia will also cease unless they have fewer than five to 10 people present, as the Prime Minister ordered the indefinite closure of places including libraries, beauty therapy clinics and places of worship.
Mr Morrison admits these measures in particular will be very hard.
While ceremonies are still permitted they are limited to the couple, two witnesses and the celebrant. He allowed barbers and hairdressers to stay open but under strict social distancing restrictions and time limits for customers.
After that statement, it was confirmed more restrictions would be placed on businesses, including beauty services, outdoor and indoor play areas and youth centres.
In the United Kingdom, the government has published a list of key workers deemed essential to the economy who may continue to send their children to school and childcare despite schools being ordered to close.
"You can see what we're trying to do, we're trying to limit the gathering of people in large numbers that can relate to the transmitting of the virus through those social interactions".
"If we do all these things then we are going to be able to put greater pressure on slowing the rate of the spread of this virus".
In a bid to contain the spread of COVID-19, the Australian Government is urging Australians to stay at home. "So that means barbecues of lots of friends, or even family, extended family, coming together to celebrate one-year-old birthday parties and those sorts of things, we can't do those things now".
Mr Morrison said some states would be considering criminal penalties for people who hold large house parties.
Most overseas travel will be banned and many public spaces will be shut. "We previously had a "do not travel" warning on Smart Traveller in terms of all overseas travel", Morrison said. When the Prime Minister says "we want Australians to exercise their common sense" about gatherings, he's relying on something not everyone seems to have.
Morrison said the change was introduced because "there are people defying that advice and looking to go overseas on leisure travel".
Limited exceptions will apply for compassionate travel, aid work and trips for essential employment.
"The direction is being worked on overnight".
Everyone who still has a job is an essential worker.
Morrison said: 'This is about working cooperatively across private-to-private and public-to-private networks to unlock resources, break bottlenecks and fix problems so Australian families, businesses and communities are supported through the challenging months ahead'.
Schools in Victoria and the ACT have closed but remain open in NSW, South Australia, Tasmania, Western Australia and Queensland.
"They can't do it, because when they come home, that's when they put Australians at risk", he said.
Despite the mass shutdowns, the PM said schools would remain open and he would meet with unions to ensure arrangements to protect teachers and staff.
"We are very anxious about the rate of the rise", said Professor Brendan Murphy, Australia's chief medical officer.
Morrison said the reason for this additional rule is due to Australians still seeking to go overseas on holiday.