A "compelling reason" refers to a very strong or convincing justification for doing or not doing something. It is a highly persuasive and significant rationale that outweighs any other considerations or objections. Full definition
One of the most compelling reasons for doing so is the rise of the digital native. (slaw.ca)
There are also other very compelling reasons why you may not want to continue including a reduction of benefits and changes in your own lifestyle and travel habits. (rewardexpert.com)
Potential Benefits: The most compelling reasons for trying to get an online degree are time and money. (myintimcity.com)