From the help of vfp

You can manipulate multiple forms as a group by including them in a form set. A form set has these benefits:

You can show or hide all the forms in a form set at one time.

You can visually arrange multiple forms at once to control their relative positions.

Because all the forms in a form set are defined in a single .scx file with a single data environment, you can automatically synchronize record pointers in multiple forms. If you change the record pointer in a parent table in one form, the child records in another form are updated and displayed.

Q1. My seniors dislike formset very stronly despite above benefits mentions by VFP if formsets are not good then why this option is carry on & not mentioning Included for backward compatibility.