Situation: I am supporting some old web forms and each input box has an icon next to it that opens up a description section directly below the field. Right now, tabbing through the form alternates between the field and the icon to open the help section.
Question: From the first form field, should the tab navigation go sequentially through the fields, skipping the help links completely, OR tab through the help at end of the form?
I've looked at some other questions which deal with accessibility and screen readers but I'm mostly interested in usability (since there are other accessibility issues and the help content is hidden by default).