Simple, easy-to-understand proof of Evolution
1. Your children are not duplicates of you.  They may resemble you, sometimes to a surprising degree, but there are always differences.
2. Those differences are due to your childrens' DNA not being identical to yours. Your childrens' DNA is some combination of your DNA and that of your spouse.
3. That is all "Evolution" is - the differences in DNA from one generation to the next.
4. Over many generations, the differences in your descendants' DNA - from two parents, from four grandpartents, from eight great-grandparents, etc., increases. That gradual change is all Evolution is.
5. It takes a great many generations - thousands - of those minuscule changes for a human or animal or plant to become radically different from its most ancient ancestors. Humanity, for example, is essentially unchanged after 70,000 years.
6. DNA changes occur with each new generation, as noted. A very few cause radical changes to the new human. By far, most of those are considered harmful - physical disfigurement or mental defects.
7. In extremely rare situations, a change can be for the good; i.e., more helpful to survival in a given environment. One example is the evolution of darker skin to lighter skin for those living near the polar regions, vs. the equatorial regions, where darker skin is more helpful. Those with lighter skin are better able to absorb Vitamin D from the lesser sunlight. People with lighter skin, if the change caarries on in their descendants, will be more healthy and so better able to survive (in the polar regions), vs. those with darker skin (which protects against the more intense equatorial UV levels).
That is Evolution in action.