The decision on whether to do prophylactic removal in your teens or twenties means trying to estimate the chance that the wisdom teeth will become a problem later.
Case 1: Prophylactic removal in your teens or twenties:
A. Wisdom teeth would have become a problem later: better to remove them earlier.
B: Wisdom teeth would not have become a problem later: wasted money and unnecessary medical risks to have the unnecessary surgery.
Case 2: Wait until wisdom teeth become a problem:
A. Wisdom teeth become a problem later: removal is potentially more complex and medically risky than if done while younger.
B. Wisdom teeth do not become a problem later: never have to go through the cost and medical risk to have them removed.
In case 1, you never really know whether your case is 1A or 1B, but you always bear the cost and medical risks of surgery in that case. In case 2, it may be years or decades before you find out if your case becomes 2A or 2B.
Of course, it may be possible to estimate the A versus B chance to some extent. If your jaw is large enough for the wisdom teeth to erupt properly, then they are unlikely to become a problem. However, even impacted wisdom teeth do not always become a problem. But it is hard to be anything close to certain.