The Form submission by Enter key can be an irritating feature for a user as the pop up about the required fields can hurt the conversion rate. The use of Enter as a Tab can be a great additional feature too. Getting rid of Form Friction. Especially for Mobile Users.
Hi there - We’ve set Enter as form submit, since that’s generally the default around the web, but one of the reasons we’re wary about changing it, even though it can cause form friction, is because it’s necessary from an accessibility stand point for users that either can’t use a mouse or other pointing device or for users that rely on other navigation controls that utilize keyboard shortcuts. For those folks, having no option to submit via the Enter key wouldn’t just cause friction, it would prevent the from submitting the form at all.