Chatz:
ie. tower can release aircraft into approach airspace by which ever means they choose, no coordination required.
Not quite correct in regards to the USA/FAA system.
Many times aircraft are launched based on previous letters of agreement between overlapping airspace. Such as D into C or B.
Other than standard pre agreed launches....tower coordinates with overlapping ATC.
I've thought about replying to this thread since it started.
But its pretty much sorted itself out.
I would point out:
You can launch (in the USA) VFR into E legally.....but that doesn't make it always a good idea.
I've done it (in a jet) often in some places....and I'd never even consider it in others. Some places are time of day, weather, traffic, dependent.
There was a Beechjet 400 that crashed in Rome Georgia USA on 12/11/91 that is the poster child for CFIT. 9 dead after departing in marginal VFR expecting an IFR clearance.
NTSB report: DCA92MA011
DCA92MA011
Oh well....I get paid to be safe and exercise judgement.