By default, Telegram filters "sensitive content" (which includes adult or violent material). Users must manually disable these filters—often through the web version—to access age-restricted groups. Reporting Illegal Content:

If you are looking to understand the safety and moderation of such content on Telegram, here is a breakdown of how the platform and regulators handle it: 🛡️ Content Safety & Moderation Zero Tolerance Policy: Telegram maintains a strict policy against Child Sexual Abuse Material (CSAM)

The responsibility of social media platforms in regulating content and protecting users, especially vulnerable ones, is a topic of ongoing debate. There's a delicate balance between freedom of expression and the need to prevent harm.