I agree that plastic currency does have similar drawbacks to cryptos, but paper currency can be easily used without electricity usage after initial creation - and it can also be used completely anonymously. The same advantages go for silver and gold coins when used as money. There are always tradeoffs.
You use the same energy with paper and plastic money. This shouldn't be a consideration you take about transacting for goods.
I agree that plastic currency does have similar drawbacks to cryptos, but paper currency can be easily used without electricity usage after initial creation - and it can also be used completely anonymously. The same advantages go for silver and gold coins when used as money. There are always tradeoffs.