I've skipped breakfast for years and my body is not missing it.

That said breakfast may be important when doing intermittent fasting for losing weight, because the secret there is to not let your metabolism get used to a certain rhythm, or in other words it's best if you are little unpredictable in what meals you eat or skip — so when doing IF, in some days I eat breakfast and skip dinner.

And when eating dinner it's best if you eat light, b/c digestion during the night sleep can make you tired during the next day. My general rule is to eat about half what I ate for lunch.