Bonsoir - you are talking out of your bottom!!
Noah is not chavvy, but it is not unusual, as it once was.
DS (aged 6) is Noah (so yes, perhaps I am biased) He is still the only Noah at his school, but I have met two families recently with baby Noahs.
I like Miles too - but can't help thinking of This Life, which was probably my favourate TV programme 15 years ago.