my baby came out with quite black & strong hair. we shaved her head at one month. her hair is nice & soft & chestnut color (we're chinese, my hair was chestnut & soft like hers when I was around 2 yr old, my mom said) she's now 22 mths old and shoulder length.
We haven't yet but will be doing it.(we are Indians) In our end we too shave off baby's hair. I and my husband both got our hair shaved when we were babies. We get the hair shaved when the baby is around 9 months. Some customs
I don't know about the cultural side of things but my Australian MIL was adamant that keeping a childs hair short would mean it would grow in to thick adult hair. i have asked many hairdressers as I always believed it had more to due with genetics than anything else. Every hairdresser agreed that cutting the hair made no difference. One even went so far as to observe that if cutting our hair made it thicker, by the time we reached adulthood our hair would be so thick that it would be ridiculously unmanageable.
my 5 months old boy has lots of hair. At 4 months old, i brought him to my hairstylist for a hair cut (after everyone on the street call him little girl or the chinese said 'mui-mui'. He looks so mature too and now very 'staylish', like a toddler!! No bald head please!