Actually, isn't that old techer of his's comment just so typical of the 'anti-travelling people'.~ 'Dont take the risk; you may not have a ''secure'' place 
What would you do? Stay or go?
Don't forget that you can also go travelling after you've done your PGCE but before you actually get a proper NQT teaching job. Especially if you do something like more teaching English abroad, no school is going to look down on you for it.