Which is not true for packet switching.
It is most popular method in internet is not true for packet switching.
A packet switched network is one of the most commonly used computer networks. It is widely implemented on local networks and the Internet. A PSN generally works on the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite or the Open Systems Interconnection (OSI) layer.
The Internet is both a packet switch and circuit switched network. Yes, it originally started off as a purely packet switched network, but that architecture is overly limiting. There are many things that you can do with circuit switching that you simply cannot do (reasonably) with pure packet switching.
Circuit Switching is connection oriented that means a path is established between source and destination before the transmission occurs. On the other hand, Packet Switching is Connectionless that means a dynamic route is decided for each packet while transmission.