Blame modern parents is such modern meeja thing.
I haven't actually MET a parent who thinks it's a good idea to send a packed lunch of just Mars Bars and crisps and my kid's attended 3 different primaries in the sort of inner city area that gets the DF readers gripping the edges of their seats. Yet the urban myths abound & parents are no longer trusted by the state to feed their own kids.
All the Mum's I've met have nursery grant starting age (3) as their "goal" for potty training to be complete. That's exactly the same as it was when I were a nipper back in the 70's. 99.9% of parents do their best for their kids - where they are let down is when there IS a genuine problem, (medical or otherwise) and the very professionals they ASK for support fob them off and let them down, time and time again.
I went through this when my son regressed on starting school - a kid that had been potty trained at 2 (verified by his nursery where he spent 3 days a week from 8-6),suddenly started wetting himself 3-4 times a day (and never in school holidays) yet somehow the imlpication was that I was a crap Mum? It wasn't until I pulled him out and home edd'd for a few months that it stopped. Took another 3 years/tribunal and all that jazz for the blame game to stop and the authorities to acknowledge and support his SEN.
My son is at the milder end of the SEN scale - how much worse for those more severely affected? My Mum has always said she doesn't know what she'd had done if my sis had been the eldest rather than the youngest, as she doesn't think her concerns would have been taken seriously despite her profession being that of an sen teacher.
I don't give a stuff when some darn fool journalist spouts a load of ignorance, when the professionals do it it scares me. My LEA Ed Pysch said my DS was too intelligent to have autistic traits - ffs it's her bloody job to identify how to help these kids yet she's that useless?
Always remember my Gran's fave saying:-
"Them as mind don't matter and them as matter don't mind".
Oh and if you want a giggle our local "parenting adviser" lasted 15 minutes with my son before she had to bring him back saying she didn't know how I coped lol!