Mojave Terms and Conditions Page Won't Let Me Agree

I recently updated my 2019 27-inch iMac to macOS Sequoia, not realizing that the antiquated hardware wouldn’t be able to handle the latest operating system. To make the device useable again, I booted into macOS Recovery mode to revert to Mojave. This worked flawlessly until I began setting up Mojave and reached the Terms and Conditions page. The “Agree” button is grayed out, and no matter how many times I scroll to the bottom of the text, the page won’t allow me to agree to the terms. I can’t proceed with the OS activation without it. Can you suggest a solution?