Having Trusted Platform Module (TPM) 2.0 chips is mandatory for devices of users looking to install or migrate to Windows 11. Unfortunately, many computers that are two or three years old don't have this chip. This may require you to purchase new devices just to run Windows 11. While there are ways to bypass this TPM requirement, it's not advisable for many reasons.
Microsoft requires devices to carry a Trusted Platform Module (TPM) 2.0 chip in order to meet Windows 11’s minimum hardware requirements. If your business uses computers that are two or three years old, then those machines likely don’t have this chip.