Dd1 21 - ff at 7 months
(in NZ it was normal to ff from 6 months) feel awful now knowing what danger she was in.
Ds1 19 - ff at around 10 months, we were living in UK by then
Ds2 16 - ff at around 10 months
Ds3 almost 11 - rf until 8 at which point his younger sibblings were moving into hbb and we didn't want him to feel bad, as he wasn't big enough for one, so compromised on a ff harnessed seat. He went into a hbb about this time last year when he finally reached 15kg! I should point out that ds3 has a growth disorder and is about the size of a 5 year old.(wears 5-6 tops and 4-5 bottoms)
Dtwins 9yrs - ff from 6.5yrs when they out grew their mini kids.