I'm still feeding DD at 22 months first thing last thing and occasional tea time or nap time.
I think you are right there is a lot of extended (agree with pps about terminology but not sure what else to say) BF going on behind closed doors.
Maybe we should all be loud and proud and do it more often in public and extoll the virtues to those who ask us/query us about it. This may mean we encourage more people to continue if it becomes the norm. I have found it helps to talk to other Mums in feeding rooms but I know what you mean about looking as if you are gloating, I think seeing some older babies BF when DD1 was little helped me get through the initial difficulties and persevere.
I have just been asked by my Mum if I am going to stop BF now as am currently 5+6 weeks pregnant so DD1 does not get jealous. I just said if she doesn't stop then there is nothing to be jealous about is there, and what better way to comfort her and stop jealousy then letting her have her "Mummy Milk" (MM).
Hopefully this is not just my rose coloured spectacles and it will work out but I am currently planning to tandem feed.
I know one other RL friend who is still BF a 3.6 year old and a friend who fed all her 3 DCs for at least two years. This helped me think if it is good enough for them it is good enough for me.
The only people who have really suggested I should stop are the professionals ie HV and GP! How encouraging is that?
Agree about the comforter MM is always the best thing to stop upset and sooth bumps and bruises.