I don't get this. Are you saying the number matters more than the significance?
Anyway I say no 19 next year, but I wouldn't retire it,
I know it seems a daft thing to say, but with 1-11 having been used since time immemorial and for the distant future, it's quite a loss, if you know what I mean. 19 isn't a 'core' number so easier to 'dispose' of.
I know it's illogical, hence me voting for the 'unsure' option