We did BLW as well.
I think it depends a lot on the individual child. DD was boob obsessed and only gave up in October last year at 3.5 years! I was SO done by then I can tell you.
Until she was 2, breast milk was definitely the major part of her diet, she just wasn't interested in food at all. I did try purees a couple of times just to see if it made a difference and she spat them out in disgust. The only food she really liked was curry and rice to be honest.
However, my sister's son, who did not do BLW is very similar and at 2.3 is definitely still more interested in breast-milk than food.
I'd wondered if my being a SAHM made a difference to her reluctance to give up milk, but even when she went to full-time nursery at 2 it showed no signs of reducing. My nephew went to daycare at 10 months and is the same.
It also depends on your parenting philosophy. I very much did full-on attachment parenting - we co-sleep, baby wearing, feeding on demand, DD was never left to cry or any kind of sleep training. I'm also very much a go with the flow type parent, so we didn't have any kind of schedule or routine. My sister does the same.
It is great for lazy people (ditto breastfeeding) and much less emotionally harrowing (having witnessed SIL in tears when DN wouldn't eat the super-duper organic puree that she'd spent all morning lovingly producing). I loved not having to go out armed with jars or having to actually feed my child, just took a bib and utensils.