Well, yeah, but if it the attention she is looking for, will she wonder why all of a sudden no one cares what she is doing? Maybe THAT would be a shock to her.
I'm all for extended nursing (which in today's society is anything past a week or 2!), and my own dd nursed well past 3. But there was never any reason to do so in public (not that there is anything wrong with that). Older children do not need to nurse constantly or without limits for any reason I can think of. I am hesitant to draw a line where today nursing your child is fine but tomorrow it becomes a crime, b/c for some people (most?) that line is under a year and for some it could be at 7 y/o. Sorry, no one gets to decide that for me. However, don't her kids have nintendo ds's or something else to do?
I think she does it for shock value, the same reason those women remove all their clothes when they nurse in public places.