Sure, but if you also had a spoon and knife then the fork is really just trying to compete with the knife at cutting and the spoon at scooping. It loses both of those competitions and is relegated to being a poker. The fork is a jack of all trades and a master of none.

Didn't you just define a superior use case for each of the three utensils? Why does the fork lose? I can't really think of any meal where a knife on its own is useful. If I could only pick one to eat all my meals with, I think the fork would be most useful.