Flying cars and platform 9 3/4

[Jim Ferer <jferer@yahoo.com>]

No: HPFGUIDX 49167

Maxxx:"If the entrance to the magical world in the train station was
only  through the magic wall in platform 9 3/4, then  how did Ron and
Harry catch up with the Hogwarts Express by using the flying car?"

Platform 9 3/4 isn't *the* entrance into the magical world, or at
least we aren't told that.  The  only thing that's sure is that the
wall divides the rest of the train station from Platform 9 3/4 between
Platforms 9 and 10. 

It's not even certain if every student takes the Hogwarts Express. Do
students who live in Scotland or someplace north of the school have to
go to London to ride back? What if a kid was from Hogsmeade? There
must be somebody.

If you could find the Leaky Cauldron, for instance, and somehow notice
it (people's eyes slide right over it; they don't notice) could you go
in?  Hermione's parents presumably did. 

It's all one of those big "I dunno's".