That's a very easy thing to say... try being a breastfeeding mom and actually doing that.
When I was breastfeeding I had to be sitting somewhere with arm rests, or pile up a crap load of pillows around me. You have to be in almost perfect position to get the baby latched on just right. It'd be hard enough sitting on a bench or something... how in the heck am I supposed to breastfeed a baby in the restroom? Sitting on a toilet? Standing up in a stall? Impossible.