I had blonde hair through my childhood.. I dyed it when I was like 11 and it never went back blonde. I became a Brunette haha.

My oldest born with black hair, changed go red.. and now has brown hair.

My second born blonde, now has red hair.

Third.. always a blonde so far.

My son was born with red hair and by the time he was one it changed to blonde

Born with balck changed to redish at around 8month