>>9888984The unfortunate part is that gingka's english voice actor was very capable of making him sound like a teenager (you can hear this if you watch the pilot episode of English MFB).
https://youtu.be/omkXd_-mf6k?t=675It sounds like whoever was directing the voice cast pushed gingka's voice actor to make the character sound younger to appeal to kids. In reality, this made gingka sound like nails on chalk and kids probably would have been fine with gingka having a deeper voice in the first place.