No. Proposals for flexible work arrangements should be evaluated on how business needs will be met and how the work will get done, as well as on an employee’s likelihood of success with the arrangement, based on his or her recent past performance. Managers should not evaluate a flexible work arrangement based on an employee’s reason for proposing it.
Your reason for proposing an alternative schedule is not a required part of the proposal. But it may be helpful to your manager to understand your reasons, particularly if he or she is evaluating the proposals of several employees...
Read more about Do I have to give a reason for wanting a flexible work arrangement?