I wasn't saying full commercial operation was preferable, I was saying that Councils under a regulated system still need a *bit* of motivation based on fares income of what the passenger wants rather than fulfilling solely political goals.
Unreliability is not inherent in tram systems, they are inherently more reliable than buses because they are far less affected by traffic and ticket sales delays.
I don't agree with you on transfer and waiting environments. Metrolink now very much looks up to the standard of a proper German Stadtbahn, while Greater Manchester's bus stations are improving all the time. What do you want? Indoor, heated waiting rooms with deep sprung armchairs for you to wait an average of 6 minutes?
I'm not talking theoretical "inherent" I'm talking real world. All rail systems, but especially electric ones" seem to fail spectacularly and regularly. Then there is the regular scheduled weekend shut downs of lines; the driving of cars onto lines causing service suspension for hours etc. etc. Reliability on buses varies depending on the attitudes of Operators and different circumstances. I suspect you are confusing reliabiliity with punctuality. For all my other criticisms of Stagecoach, reliabiliity remains good with very few buses actually not running at all. The problem is punctuality for various reasons - and not just at peak times. In short, if you have a problem on a bus, you might get delayed 5, 10 or 15 minutes. On rail, the delay in proportion to the scheduled journey time is FAR worse, and no less rare. Interestingly, you mention 6 minutes wait - what I have noticed when travelling by Metrolink (invariably, Piccadilly to Shudehill off-peak) is bunching. Like heavy rail, RTI often underestimates the wait, and I usually wait in Undercroft for 8 to 10 minutes to catch a tram across the city centre, and then another will be a couple of minutes behind!
As regards transfer and waiting environments. Suburban tram stops are just raised platforms with poor sheltering, cluttered by fellow passengers (city centre) or gangs (elsewhere). Bus Stations are not improving. Apart from solid seating (at least they don't move, so less of a threat to weakened spines), they are unpoliced outside the morning peak. Thus they are often full of yobs, or infiltrated by smokers and illegal cyclists - notably, apart from schools peak, none of these "people" are bus passengers. Then there is the transfer. How far will you walk between bus stop and rail/tram station? How many major roads will you cross - these things are time consuming on top of the "average wait", and what about the weather and again, anti-social behaviour; by far of which the biggest incidence is illegal cycling? Remember, you are asking commuters to do these things up to 500 times a year.
Sorry, the whole concept is 30, 40, even 50 years too late.