Kids with several hundred hours go straight to a window seat on a wide body.
Yes, they do indeed have a line of graduates who after finishing at the college get the benefit of building hands on jet experience by flying around with an experienced instructor for a few months in their fleet of Learjet trainers. Those graduates do indeed get a window seat, but note that SQ has recognised the need for jet handling experience before getting into the flying seat of one of their wide bodies.
Needless to say, there are positively no jet training aircraft planned as part of the Jet* Cadet scheme, and the fact that SQ are spending a very large amount of dollars operating a fleet of jet training aircraft for some of their graduates, doesn't change the premise of the point I am making.