The solution is of course for younger people to get involved in the organisation and change things but, as with professional bodies (one of which I a member of a local committee) it is so very difficult to get any young people (and I'm not 'old') to volunteer these days...
So guess what, nothing has changed in that time.
There are people that put a lot of hard work and effort into the CCC, so that should not be in any way denigrated, but it seems to exist in pretty much the same form and function as it did when I joined back then. That being the case, it will only ever attract older people into very classic Citroens and become less and less relevant.
I'm still a member of CCC purely because I think I should be (and I still like to get the magazine, because I'm a bit old fashioned like that

I think the age of paying car clubs is over (unless you own a Porsche 911, in which case you will happily bend over and pay lots of money to be a member of Porsche Club GB with all the pretentiousness that club brings with it

If the CCC is to remain a paid club, it should only be because it does something worthwhile with the money - such as, for example, funding some storage somewhere for all the parts that Citroen are chucking in the bin, so that members (and only members, in order to keep up the income to fund the rent) can then access the parts (paying for them) so we stand some chance of keeping anything newer than a DS on the road...
Obviously that would have to be at the expense of something like the magazine, but in the days of the internet with live forums, I'm not sure that actually should be seen at a cost at all.
I haven't ever seen any evidence of anything like that having ever appearing on their radar though, so I must admit, I have been wondering recently what the point of CCC is...