One problem is that SG 'relies' on the fact it's 'up to local authorities'.
In Copenhagen I think officials tried a few things, then got a degree of cautious political support, then discovered that the public wanted more!!
There is a UK/Scottish/Edinburgh assumption that those who don't want it (the alleged silent majority motorists/voters) will shout loudest.
We have politicians (this is not particularly directed at the SNP - they just happen to be in power) who believe that toll-free new bridges, bypasses etc. = popular = votes.
At 'best' this is short-sighted and may well be wrong and (perhaps) contributing to 'voter apathy'.
Need more officials/politicians willing to argue that 'active travel' is good - requires investment, but will save money (after most politicians are unelected/retired).
Just have to hope there isn't a conversation along the lines of
'Well Jim, we've had a great time and learned a lot and could do a lot of it at home. But we are not going to, so don't promise anything'.