My 2c on the subject is that it's no harm to know how to baton if you need to and for whatever reason don't have an axe, but I almost always have an axe when I need to process wood in that manner. I do like my knives to be tough enough to hold up to batoning if required, but I don't see it as a job for a knife and I tend not to it myself.
As Mark has said, if you only need a small amount of material just stretch your legs and find some small branches.
As Mark has said, if you only need a small amount of material just stretch your legs and find some small branches.