I've been thinking a lot on this topic recently.
Last week, while on a car trip with Younger Daughter, I discovered that she wants me to take my (dream) cross-country trip solo. As in no husband, no friend, no blankie, nada. All by my lonesome. OK, she'll allow William (the Bike), and a cell phone, etc. Her vision is me on my own, pedaling up mountain passes, on my belly by the side of the road taking pictures of pretty flowers, stealth camping in dry washes - you get the picture.
Talk about faith in the Old Lady!
While I have no doubt that I can do the trip solo, I wonder if I want to. Some things are just better if they are shared - like the weight of the tent. 
I've got years and much conditioning before such a trip will be possible, but when the time comes I think I'll dissapoint my daughter and invite my husband. If he declines, I'll go anyway. I think.
OTOH, I'm a bit nervous about bringing William home from the bike shop. I really don't think he'll fit on our bike rack 'cause he's a really long recumbent, so I'm planning on riding home. I'd like a companion on that trip - new bike, new route, never ridden a 'bent that far, etc.
I think I just need to get over it and go. After all, I'm considering a ride across the US....
Give big space to the festive dog that make sport in the roadway. Avoid entanglement with your wheel spoke.
(Sign in Japan)
1978 Raleigh Gran Prix
2003 EZ Sport AX