Better solutions than age verification BS
Teaching children/teens basic internet safety rules such as not giving out personal information (name, age, etc.) and internet stranger danger
Informing parents/guardians about the existence of the YouTube Kids app before they hand the unfiltered iPad to a kid to watch
Informing about YouTube Teen Accounts
More online teen spaces such as MMOs, pet sites, and RP forums with site rules to keep things appropriate
Emphasis of report and block buttons if something said in said spaces makes someone uncomfortable and/or breaks site rules
Game support forums not being locked to Discord servers and easily accessible to the entire userbase
Parental blocks that restrict downloading dedicated "adult community" apps
In mixed age online spaces, adults being less hesitant about using built in content filters such as tags and mature content labels
Parents/guardians understanding age ratings on items such as movies and video games, especially R and M
Parents, guardians, and trusted adults (ex. teachers, librarians) being available to listen and discuss when a topic is confusing (and not immediately get mad and complain about the material)
Better access to youth library materials (ex. young adult)
More/better offline teen spaces and access to hobbies without too much unnecessary expense