What I read from the original is a difference from their normal functioning, once someone is there to help... the "helplessness" they allow ? to absorb them? In that case, imo, it is the illness.

But also I would consider the physical aspects of public transportation. (And also, how once already not feeling well, the increased difficulty of using public transportation. ) Getting onto a bus, riding sideways sometimes, bumpy, etc...not knowing how and when the vehicle moves, changes lanes, turns... and the not being in control (like behind the wheel) aspect... having to hang on to stay in a seat... and the financial aspect... not just the cost of giving money to a stranger for this, but handling the monetary transactions.. whew!

IMO it all adds up... and when, like with depression, even normal day to day stuff is a chore and seems impossible, add the factors from being around unknowns - including strangers - it seems it would be so much nicer to ride in someone's car, with someone you know... and even if you reimburse, the money goes to someone you appreciate (inside?)

However... yes... because of a mental unwellness... some ppl "forget" to be grateful! grrrrrrrrrrrrrrrr

With regards to the difference in when they want to have fun??? that is curious, and imo leans towards learned helplessness? The reward of having some enjoyment might be enough of a motivating factor to get out and do it for themself.. but really...

I'm glad you are able to continue to fight and have your independance... and that at least for now you are not in the position of being unable to do so much for yourself.

Being depressed and unable to function day to day does not preclude having a day when one is able to get out and do for oneself, though... it doesn't mean they are depressed only when they don't want to have fun... but I ramble...

I think your question is a good one... makes everyone think about their own motivations... and how it's observed by outsiders.