Why IP is consider as a best effort protocol?

internet Protocol (IP) is considered a best-effort protocol because it does not guarantee the delivery of packets, their order, or error correction. IP simply forwards packets based on their destination address, without ensuring reliability or quality of service. If packets are lost, delayed, or arrive out of order, IP does not provide mechanisms to rectify these issues, leaving it up to higher-layer protocols, like TCP, to manage reliability and flow control. This design allows for simplicity and efficiency in routing data across diverse networks.