Why did Petunia Dursley accept Harry at the beginning?

[Debbie Roberson]

No: HPFGUIDX 99886


> 
> AmanitaMuscaria :
> Well, Vernon certainly had no thought for Harry's safety after the 
> Dementor episode. And I had the impression Petunia wasn't so much 
> worried about Harry being killed, as responding to some sort of 
> compulsion (no, not the neighbours talking - that was just an 
excuse 
> to shut Vernon up). She wouldn't look at Harry while she told 
Vernon 
> he had to stay, and it didn't seem to me, anyways, from that scene, 
> that her concern was for Harry. I wonder if there was something 
about 
> Vernon or Dudley, that Dumbledore pledged to do, that was the trade-
> off?
> Cheers. AmanitaMuscaria


Debbie R. Here:

So - what are the possible implications here?  

Maybe Dumbledore could guarantee that her offspring, even if magical-
born would never manifest wizarding-ability and thus live his life as 
a muggle?  That would be a powerful persuasion for Petunia, 
especially given Vernon's attitudes.