Nope nothing wrong with you. Wisdom teeth are a leftover or genetical vary. So some people get some, some people not. They could have been useful in earlier time to replace missing teeth you mostly had around 25, but because of us having good hygiene nowadays, they are mostly causing only problems. So as mentioned, mine didnt even have place in the jar left, pushed the other teeth and are additional about 50% hidden from flesh, so I couldnt propper brush them. My partner had additional one with twisted roots, that caused because of that horrible pain, when the tooth tried to wander up into his jar. He needed to be sedated, then the Dr. needed to cut through the flesh to get to the wisdom teeth, because of the twisted roots, he couldnst simply plug it, but needed to split it into four parts, each with one part of the root. (With roots I mean the long anchors, that are fixing your teeth in the jar, sorry if its the wrong word.) and then to remove each part.
So if you dont have wisdom teeth: Simply be lucky. ^^