Why is Rudeus still being played by a female voice actor in S3 Dubbed??

He's clearly reached/passed the age of puberty and by now should have a deeper voice. It takes me out of the show when he's like 17/18 but sounds like he's still 10/11 years old. Surely someone at the studio was smart enough to realise it would be jarring he STILL sounds like a kid even though we've gone through his birth, childhood and early teens?

No shade to the voice actor playing Rudeus because it's not their fault but the studio should've done a better job. She sounds like she is trying to put on a slightly deeper voice but it sounds so obvious it's a female voice like one of the "guess the woman" videos. I close my eyes and can't tell the difference between Rudy, Sylphie and Roxy except for the dialogue.

Honestly I wouldn't even be surprised at this point if Rudy is being played by the same voice actor when he's an old man.

People might comment and say there's a female voice actor playing the sub too? I dunno if there is one but it's more annoying when hearing the voice actor in your own language sound "off". I dunno how "off" would sound like in Japanese.