Silly question about very high pitched DS

[Titsalinabumsquash]

This is going to sound really silly but my DS2 has a really high pitched voice, more so than his peers.
Has anyone else had a very squeaky voice son and did his voice deepen to a normal level when he got older?
This doesn't matter a jot to me, he's my lovely DS and I would never mention it to him but I have memories of a few boys at high school with higher, feminine voices and they got picked on DS already has a bad stammer from years of bullying, he doesn't need another thing to be picked on for!

[Titsalinabumsquash]

I forgot to add, he's 7 ATM but I'm comparing it to his class mates and DS1 when he was the same age.