>At any rate, all vowels are 'easy' to produce---it just depends on what
>phonemes your native speech had that you learnt as a child. Babies (at a
>particular stage of their linguistic development) can distinguish more
>sounds than you or me.
Are you sure? any french speaker can know if someone who speaks french have
english as natal language with the pronounciation of the vowel [y]
Except if the person lived in a french envirronment since a long time, an
english natal speaker will say the sound [y] like [Y] or [}]
And a lot will have difficulty to pronounce nasal vowels exactly as they
must be
OK I know everybody can say these sounds when he start of a sound he master
and slowly turn the sound into the one wanted but in a conversation it may
be harder