Reddit, the popular community-focused forum, has launched a legal challenge against Australia’s social media ban for teens under 16, arguing that the newly enacted law is ineffective and goes too far by restricting political discussion online.

In its application to Australia’s High Court, the social news and aggregation platform said the law is “invalid on the basis of the implied freedom of political communication”, saying that it burdens political communication.

Canberra’s ban came into effect on Wednesday and targeted 10 major services, including Alphabet’s YouTube, Meta’s Instagram, ByteDance’s TikTok, Reddit, Snapchat and Elon Musk’s X. All targeted platforms had agreed to comply with the policy to varying degrees.

Australia’s Prime Minister’s office, Attorney-General’s Department and other social media platforms did not immediately reply to requests for comment.

Under the law, the targeted platforms will have to take “reasonable steps” to prevent underage access, using age-verification methods such as inference from online activity, facial estimation via selfies, uploaded IDs, or linked bank details.