Seem to be answering my own questions a lot these days.

Anyway found "a solution" Tested it and so far it works. For those looking for an answer to a similar question, here’s what I did:
In webloginpe.class.php, line 874:
$generalElementsArray = array(’fullname’,’email’,’phone’,’mobilephone’,’dob’,’gender’,’country’,’state’,’zip’,’fax’,’photo’,’comment’);
I just removed fields I didn’t want users to change (in addition to removing fields from the update form itself). I just want to add that there are conditions on dob and photo but what I did didn’t involve those fields, so not sure if simply removing those fields will do the trick.