Yeah he's been going on about this for years, they're super determined to make Roblox into an "All Ages" platform with things like public voice chat and 17+ "experiences" but they completely neglect that the vast majority of their user base is barely even old enough to speak.
To make matters worse, as far as I'm aware there's no actual age verification other than just inputting your date of birth so most of those kids barely old enough to speak frequently access features like public voice chat