It's already 2019. I've been reading comments from 2015 about this same issue. I downloaded the most current version of InDesign and unbelievably I still cannot resize an object on my MacbookPro by clicking on the shift button. It works occasionally (for some odd reason). This is totally ridiculous. I read dozens of complaints about this from 2015 and on. Seriously, Adobe? You cannot fix this issue once and for all.