Nope. That's moderate Civilizational Incompetence; science knows well that 1mg is often way too much for a first dose, but shops have presumably found that the average customer thinks "More melatonin is better" and that informed customers are too scarce to market to. You can get correctly dosed melatonin on the Internet, as with any other niche market.
In the Netherlands you can get them as 0.1mg tablets in drug stores, which makes for easy dosing.
Interestingely enough, the package used to recommend a dose of 1 tablet, but has recently been updated and now recommends taking 10 tablets at a time!
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.