Even though Wednesday did not mark their actual 100^th day at school, teachers at Ashmont Public School did not want to let their kindergarten classes miss out on a staple tradition dress-up day just because they happen to be starting school in the throws of a global pandemic.

Kindergarten teacher Lara Petersen said the year group would normally parade their old-timey fashions for family and the school community, but this year the event had to be renegotiated digitally.

"Normally we'd invite their parents and grandparents to come down and have a big school assembly to see them all in their dress-ups," Ms Petersen said.

"This year we've videoed their parade and put it online for them to see at home."

Even if their costumes would not be seen in the flesh by their family and friends, the little ones still spared no detail in transforming themselves into miniature 100-year-olds.

The Daily Advertiser asked a couple of the students what they thought it would actually be like to be 100 years old everyday.

Six-year-olds Mia Rushby and Tyronne Wishart said they look forward to a few things about being old.

"Old people have walking sticks and they walk slow but they like dancing. Dancing is fun to do for old people," said Mia.

"We only dance sometimes, but they dance all the time. Except when they're in the hospital and they can't."

Tyronne agreed, saying "I have a grandnan and she likes to dance. That's how I know about it."

Seven-year-old Scarlett Jackson thought there might be some other fun things to do when you reach your century milestone.

"It would be fun [to be 100]. You get to sit in a chair and do nothing and just watch TV all day," Scarlett said.

When asked what it was that she would like to watch all day, she said it would be Paw Patrol.

Seven-year-olds Tess Moran and Maleah Black however, thought the fun of being older would be outweighed by a bit of sadness too.

"I think it would be sad and you wouldn't be able to do things that are fun, like gymnastics," Tess said.

Agreeing with her classmate, Maleah said: "If you did try [gymnastics] people would laugh and you'd be embarrassed."

Whether they knew anyone who had reached 100 years old, the classmates said they could not be sure. But at least Maleah knew her grandparents who "might be old but not that old".

"My grandparents like to babysit people all the time, but they're not 100 so they can," she said.