An 18 year old, in most countries, is considered a major and responsible for his mistakes.
2018 was the year of the development of Facebook and Twitter, not as start-ups, but as major popular social media companies.
Facebook and Twitter are mainly used to create violence. These two social media are now the main target of angry users and politicians who want these companies to pay both figuratively and literally after years of freedom.
Facebook and its CEO, Mark Zuckerberg, have become, the poster of all the ills of the Internet.
Zuckerberg himself was dragged before lawmakers in Washington and Brussels, where he was confronted with anger and indifference.
Zuckerberg has been made available in the UK, where Facebook is battling a fine regulator in connection with the Cambridge Analytica scandal. Zuckerberg mocked the idea that Facebook could have an impact on an election, wondering if Facebook could "do better" - by posting news on Friday nights or holidays.
In September, Twitter launched a new policy banning "dehumanizing speeches", direct attacks or threats of violence based on race, sexual orientation or gender.