Wands are only an extention of yourself, an extra tool, many people choose to use their hands instead of a wand, hands are likely more frequently used than wands especially if someone: works better without a wand, doesn't feel connected to wands or can't afford to buy one at the time.
there's pros and cons to verious tools like wands, athames, swords, or whatever you wish to use to direct energy, but at the end of the day it's what works for you. you can use your hand/finger to direct the energy, or you can use a wand, you're just directing energy, no need to stress. [personally i use an athame, but in a pinch i use my finger]
I agree with hearthwitch. When working with energy and magic, the hand is just as effective as any symbol of will or symbol for projecting intent. Energetically speaking, the hand has expressions in it of all seven of the major chakra points, and is both a focal point for sending out and also drawing in energy. For most people one hand draws and the other sends. usually the dominant hand projects and the other draws. For a few either hand can do both. So if you are working magic involving projecting an intent or will outward, it may help to use the dominant hand to 'send out' the energy. While if it is about calling in, defending, or redirecting energy then use the off-hand. (A good analogy is like a warrior having a 'sword' hand and a 'shield' hand.)