Non-English speaking in Australia -...

Non-English speaking in Australia - https://link.springer.com/article/10.1007/s12134-021-00836-y
"The number of overseas-born Australians not speaking English well or not at all has risen, from around 500,000 in the period between 1991 and 2006, to about 820,000 in 2016 (about 12.6% of overseas-born population)"

Sight impaired - https://www.vision2020australia.org.au/resources/a-snapshot-of-blindness-and-low-vision-services-in-australia/
"Home - A snapshot of blindness and low vision services in snapshot of blindness and low vision services in AustraliaIt is estimated there are over 575,000 people who are blind or vision impaired currently living in Australia, with more than 70 per cent over the age of 65 and over 66,000 people who are blind."

Literacy impaired - https://www.healthdirect.gov.au/learning-disabilities
"In Australia, up to 1 in every 10 people has a learning disability. The most common ones are:dyslexia, which causes problems with reading and writing — about 8 in 10 people with a learning disability have dyslexiadysgraphia, which causes problems with spelling and handwritingdyscalculia, which causes problems with mathsdysphasia, which causes problems with speaking and understanding others’ speech"

Now extrapolate those figures Internationally
A talking Avatar opens a whole new world