A 6-yeаr-оld bоy is brоught to the ED becаuse his pаrents are concerned that "his foreskin won't pull back." The boy has no pain with urination, no ballooning of the foreskin during voiding, and no history of urinary tract infections. On exam, the foreskin is non-retractable but appears healthy with no scarring, cracking, or whitening. The urethral meatus is not visible. There is no erythema or discharge. Which of the following is the most appropriate next step in management?