as Kadonye has said .....the only issue with piggy banks is that if many people own them...it may hurt the economy and mean more taxes if the government has to keep on printing money...especially the expensive coin money printing.....As we talk now there is shortage of coins because many people leave them at home....as such you are forced to 'buy' sweets in many supermarkets ....
Isaiah 65:17-Look! I am creating new heavens and a new earth, and no one will even think about the old ones anymore