A little basic research goes a long way. The mint director's annual report presents the costs and seignorage (profit) for each denomination. https://www.usmint.gov/content/dam/usmint/reports/2024-annual-report.pdf Will this change a bit as fixed costs are reallocated from circulation-quality cents to other programs? Sure.
Can't imagine the nickel will be far behind really, but I think they wisely are choosing not to do too much at once.
There's no way I can see to keep a 5g "nickel" using zinc. Density of the 75% Copper - 25% Nickel is 8.93 g/cm³. A 5g "nickel" is then 0.56 cm³. Pure copper is 8.96 g/cm³ Pure nickel is 8.90 g/cm³ Zinc is 7.14 g/cm³ The maths of combining two lighter materials to make a clad coin of the same size and mass doesn't math.
Well then... don't. Vending machines already don't take pennies; the world won't end if they also don't take nickels. People use cash a lot less these days anyway, even for vending machines, many of which take cards now. Either don't keep it 5g or... don't keep it, period. If the law says they have to be 5g, well... laws can be changed. Or it's a moot point if they just discontinue it altogether. I think the only reasons nickels haven't been discontinued too is because they don't want to do too much at once, to ease into the transition. We've been using nickel 5 cent pieces for less time than we've been using pennies, even if you only count small cents. If we can do without pennies, we could do without nickels.
The small cent was introduced in 1857. The five-cent copper-nickel alloy coin was introduced in 1865. That's not much difference.
Actually, copper-nickel small cent started in 1856/7 and the bronze cent started in 1865. As for the wider question, we should ditch all our current coinage and change to 10 cent coin (as smallest), 25 cent coin, $1 coin, $2 coin and $5 coin, then start with $10 bills.
1856 Flying Eagles are generally called patterns. Albeit struck in much larger quantities than any other pattern and widely distributed. The 88% Copper, 12% Nickel alloy gave the mint a lot of trouble in the striking. (And the 75%/25% later alloy was worse.
I agree for the most part but would eliminate the 25¢ and make a new 50¢ that is about the same size as the current nickel. 10¢, 50¢, $1 and $5 coins, then $10 (eliminate the $20), $50, $100 and $500 bills.
They need to bring back $500 and $1000 dollar bills. These hundreds are annoying and just clogging up my wallet.