The realistic view is less youth are playing cricket regardless of format.. Correction.. Less of all ages !
If you shorten the game you reduce the amount of players getting a game (even Lms and indoor basically still mean only the front couple get a good game so it still holds true) drops, which anyone sensible will realise is a big factor in player retention to clubs and the sport in general
Shorter games will still cost the same because it costs that to produce the wicket, meaning less value for money
£x quid to bowl less overs or forced to retire ??
I think regardless what you do you will lose similar amounts of players to the sport, with the extra factor that by shortening the format you force a section of your natural playing people out the game as they can't or don't want to slog (that's not just eeyore, there are kids who are simply never picked for their team unless desperate not due to ability but because they can't muscle the ball around and in 2020, that's what matters).. I know at least 6 under 15's who are never picked by their club becUse they can't clear the ropes.. Yet, they are decent players but because yth cricket demands hitting they don't fit in..where is their role in short game ? Simple answer, they won't have one so are lost to the game)
It is interesting and I know some that would play short games but that's not a time issue, it's because they suit that format. He issue is with anyone batting 4+ would simply rarely bat.
The game doesn't need formats changing IMO, it needs re-balancing by enforcing rules to ensure all11 players have a active role.. Ie
Top six must not bowl more than 3 overs each and include the wk.. The 7+ players can bowl upto 20% of the total overs
This would ensure all 11 get a game
Currently what age group generally keep clubs running and do the groundsman jobs ?? 50+ yr olds?? Fast forward 25 years.. If you've shortened the game and potentially lost your 30+ yr olds .. Who will run clubs etc?? I doubt the youth will as a general rule.. And so, clubs die.
It will be interesting to see which way they decide and if over time it makes any difference