woodlands01 that's the thing isn't it? It's having the energy to make the most of our liberty. And as you and many others are saying, liberty isn't necessarily permanent after they go to university. I know it won't be for me.
Velvet24 yes, I know a 27 year old and a 29 year old still living in their respective homes. And yes I do think some elements of our longing for solitude, and the spikiness of teens, are probably designed by nature to facilitate the separation process.
Given that our DC are likely to bounce back, it's even more important that we "are not available" to slip back in to our old role of caretaker and facilitator and the dynamic has to shift from parent>child to adults house-sharing together, and I reckon it will be so much easier for us to make and maintain this change, if we are preoccupied with our own projects.
And agree that, as BuwchGochGota says, having them learn to drive is an essential part of this, unless you live somewhere well covered by public transport.
And I think, as Riverlee has experienced, some of this branching out on our own, will feel strange at first and we'll need to get used to it.
It's great to hear though how some of you are already starting to carve out space for yourselves here and there!
or are starting to dream about it! Which is a first step!
Welcome PadamPadam I hear you about being the emotional crux of the family which is exhausting. I also feel the same way about the high-brow TV and foreign films instead of football. I was thinking about this over Easter actually. For the first time in about a decade, I got to choose an Easter film for everyone to watch and partly because of this thread I thought sod it, instead of choosing one to suit everyone, I'll suit myself like everyone else does. and chose a Pasolini as a contrast to the usual sci-fi, Japanese anime, Top Gear, football that's on endlessly. My dds and DH started talking about second hand cars about ten minutes in, they didn't even bother to pretend to be interested in the film, so much so that I turned it off and left them to it. They are all university educated people (well one has just started at uni) so it shouldn't have been too much of a stretch just for once. I didn't make a fuss because it was Easter, but I was upset as I must have sat through literally 100s and 100s of films of their choice over the years. It obviously wasn't the end of the world but it got me thinking about balance of power in the home and it lead me to thinking some uncomfortable thoughts frankly. 
Lowther I like the reverse dynamic of your teen being worried that you were out too late 

Welcome FrancescaContini and Chrysanthemum5 and anyone I haven't mentioned!
Now the holiday is over and we've had time to think about this, maybe it's time to put our thoughts in to action in a few small (or big!) ways? And maybe we could report back here about the ways we have started to branch out?
Good luck everyone! Have a good week!