Is Fischl a Minor?

Add it all together and it means that Fischl is at least 16 years old.

Is Fischl a 16?

Fischl was 14 when she got her Electro Vision, so she can't be younger than 16, as no Electro Visions have manifested in two years according to the main story.

Is Fischl from Genshin Impact a minor?

This means that she is around 15-17 years old, because if this interaction is based on the legal drinking age of China, which is 18. Nevertheless, in these interaction Fischl says to Oz that she is older than the Universe. But for now, all of the evidence suggests that she is a teenager.