jinglespots i think i said the same when dd was 7mths. Thats why i got to the point i am now!!
I read about and was told about many children who "self wean" and as you say, rather than taking it away when dd still wanted it and couldn't understand why it was gone, i hoped that eventually she would give up of her own accord.
But with my dd things got worse, at 10mths, she was just having feed before bed and one in the morning. As time went by her sleeping habits got really bad and she was in our bed much of the night and feeding from me frequently (i never woke enough to stop her, just had vague awareness of it.)
I then panicked and stressed both of us about how we must give up, but it was impossible somedays, she'd scream and rip my clothes off until i gave in. (even with three layers of tops on!)
But now thankfully, i have worked hard to keep her well away -which is sad cos for a while we had to avoid cuddles and baths together etc. and i think my milk has virtually dried up, so some days she succeeds to try and gives up after a second.
Sorry to waffle!
My advice to you is think long and hard about what you want. I am not against breastfeeding children to the age of two, i just felt that with my dd things spiralled out of control and needed to be stopped.
If you have a good routine with breastfeeding and your dd is not just using it as comfort, i would not worry if i were you, just be careful not to let "extra" comfort feeds sneak into your routine.
My aim with next baby is to aim to stop at around 6mths, because i feel they can adjust faster at that age. Whereas my dd is old enough to remember even when she hasn't fed for a few days. And i thought the same as you that by the time they are nearly two you can at least give an explanation, which i do, and i know she understands, but it doesn't make a single bit of difference! she still wants the boob, regardless of explanation, bribery, distraction etc.
So sorry to have gone on, just trying to give as much info as i can.
But don't let me panic you like i panicked myself, if you have strict routine with feeds i'm sure most babies would wean themselves, it was due to my inability to wake! that got me in trouble.