Well...depends. If moderation is absolutely needed and only slight overdose leads to death, then yes, do not count on moderation and common sense as an absolute.

In general though, by nature's design, people start to consume everything unknown slow and increase the amount/dosage. That is how we function.

The fact some people do not know moderation, for various reasons, is not a sound argument for prohibition. Some will always abuse anything.

You can die of drinking too much water, and certainly people did in the past. Can you prevent that from happening, by controlling the access to water somehow? No.

In my opinion the more nonsensical idea is to try to forcefully protect people from doing harm to themselfes, when common sense and normal behavior will do on its own. There is free will and autonomy over the own body. That's the limit of regulation.

The better aproach is education in a honest, factual way.