I was actually told verbally that I don't have to do this any
more... But you know how the SAF works... it didn't happen if it
ain't in writing. 
In my BMT days, I used those really old style boots that require
2 weeks of seasoning. I heard that the Goretex boots these days
doesn't require any seasoning... I am not sure, but I also heard
that its not as durable as the older type of boots.
If its a pair of pre-seasoned boots, as long as the size fits, its
less painful to further 'set' it to your feet's curves and shape
than to season a new pair altogather... Of course there is no need
for my son's feet to grow to the same size as mine (I was hoping
his feet size will be bigger), but there's always an option to use
mine in the event that his size is same as mine.