One of the participants in the hearing of Wednesday is Simeon de Brouwer of EDRi.
EDRi published the article Youth organisations demand social media change, not bans on their website. The introduction:

Youth organisations demand social media change, not bans
The protection of young people from online harms remains high on the political agenda, but the debate continue to focus on age gates and social media bans. In response, 31 youth organisations and youth activists – the intended recipients of these ‘protective’ measures – have joined forces to speak up against their own exclusion. They warn that the real solution lies in addressing the root cause of the problem: the design and business model of platforms.