Of course it's unacceptable to be standing at the school gates in your pjs and the Head was quite right to object - in fact, the main point she made in her letter, was that some parents were turning up to parents evenings, plays and concerts in the nightwear.....what on earth would make you think that it's ok to do that?!
The mother that made the news defended her actions by saying her daughter would be late to school if she had to get dressed before taking her - and that other parents faced the same problem....
Top tip - try getting up 10 minutes earlier.......?!
I guess they're not dashing off to earn a living then!