According to your fellow Protestant lifeisgood above, bowing/kneeling does not necessarily involve "worship" at all, for example bowing as a common greeting in Japan, or bowing before Queen Elizabeth as a gesture of respect and honor. Should these cultural expressions also "be avoided" because bowing (supposedly) "is indistinguishable from a posture of worship"---that is, because a tiny minority of observers might happen to be ignorant of what is actually going on?
However, if bowing does not equal "worship" (as in bowing before a sacred object), there is no reason to avoid such a thoroughly Christian expression of piety. The ignorance of a few outsiders should not be allowed to determine what Christians believe, think, and do. Rather, ignorant outsiders, if they find themselves confused, should be taught and instructed regarding the spiritual meaning of Christian behavior, which the Church has always done.
Gaudium de veritate,
Cruciform
+T+
It should be obvious to the most casual observer that people are not statues carved by men and that statues carved by men are not people. If you understand that difference then it is easy to understand that bowing before a statue is very different from Boeing to a person.