Then how am I still able to access youtube, facebook and all the others without needing to give them my ID?

DNS translates domains like youtube.com into IP's like 1.1.1.1, this has no bearing when you make a social media account in Australia:

It’s not a ban, it’s a delay to having accounts.

This means there will be no penalties for under-16s who access an age-restricted social media platform, or for their parents or carers. However, age-restricted social media platforms may face penalties if they don’t take reasonable steps to prevent under-16s from having accounts.

https://www.esafety.gov.au/about-us/industry-regulation/social-media-age-restrictions

As of 10 December 2025, Facebook, Instagram, Kick, Reddit, Snapchat, Threads, TikTok, Twitch, X and YouTube are required to take reasonable steps to prevent Australians under 16 from having accounts on their platforms.

If you have an australian account registered with those websites and they suspect you are under 16 you will have to verify your id

As explained here the platforms will need to check:

https://aussie.zone/post/27246692/20254931

How can under-16s be stopped from finding a way around the age restrictions?

Platforms may assess age-related signals which can help work out if someone is under 16. These signals can include:

how long an account has been active

whether the account holder interacts with content targeted at children under 16

analysis of the language level and style used by the account holder and the people they interact with

visual checks, such as facial age analysis of the account holder’s photos and videos

audio analysis, such as age estimation of the voice of the account holder

activity patterns consistent with school schedules

connections with other users who appear to be under 16

membership in youth-focused groups, forums or communities.

Platforms may also use location-based signals which can help work out if an account holder usually lives in Australia and could be using a VPN to pretend they don’t. These signals can include:

IP address(es)

GPS or other location services

device language and time settings

a device identifier

an Australian phone number

app store or operating system or account settings

photos, tags, connections, engagement or activity.

Evidence of these age and location signals is expected to trigger the age assurance process, or review of an account if it has already been checked.

https://www.esafety.gov.au/about-us/industry-regulation/social-media-age-restrictions/faqs

On top of this there are plenty of services that block VPN's, most famously Netflix.

So yeah, changing one aspect of your account while leaving all the others won't get around the ban

Edit: Nice alt accounts, loser.

This is my primary account and always has been? What's with the loser? Why so cranky?