Regardless of whether you personally use Android or iOS, I think that we can all agree that it is not right to be forced to use a specific platform in order to access almost any Internet services.
This is only an issue if it's the only way of verifying your age. If it's still accessible to everyone and this makes it significantly easier for 99.9999999% of people then why not?
A certified Real Opinion (tm). The only thing missing is the checkmark.