We speak Bajan.Some say it is a corruption of the English language and that the children shouldn't be encouraged to speak it. I know a popular talk show host Tony Marshall who said that Bajan was never spoken in his house.
Unfortunately or fortunately I grew on a diet of 'rank Bajan'. We had a lot of wunna although we tended to stay away from the unna and inna.
The problem I think comes with spelling.Children would tend to spell some English sounding words just as how they would pronounce them in Bajan and that would be a problem.During my school days correct English Grammar and was emphasized continuously both orally and written in the English language classroom.