Why did shillings go out?

Shillings gradually fell out of use primarily due to the decimalization of currency systems, which aimed to simplify transactions and accounting. In the UK, for example, the introduction of the decimal pound in 1971 replaced shillings with a system based on 100 new pence. This move was part of a broader trend in many countries to modernize their currencies, making them easier to understand and use. As a result, shillings became obsolete and were officially withdrawn from circulation.