Judging by the number of people on MN who turn up having made a balls up of the application process (which will be a fraction of those who have) surely there must be a way of alerting parents and of warning them of the possible issues.
Could the BBC do a party political broadcast type thing once a week from when applications open?
Could CBeebies do a basic guide?
I can see why sending letters out everywhere isn't practical, but it must cost a fortune for councils to sort out the mess each year.
Many people don't send their child to nursery, don't visit libraries etc and so really have no idea of when to apply or how it works - or more importantly the consequences of rejecting an offer or of only listing options they don't stand a hope of getting.