These are all "drugs". Anything we put into our body, food or otherwise, is a "drug" and serves to alter us in some way.
You will always have "external dependencies". You are dependent on food and water to live, social interaction to love and to feel friendship, and other humans to make your life possible through manufacture, farming, and medical care, among other things.
We all have external dependencies. One of the beauties of ingesting hallucinogens is that this is the first realization you will likely have.