How is sympathy created for hamlet and Ophelia in act 1 scene 3?

In Act 1, Scene 3 of "Hamlet," sympathy for Hamlet is created through his complex relationship with Ophelia and the pressures they both face from their families. Ophelia is caught between her love for Hamlet and her father's strict admonitions to avoid him, highlighting her vulnerability. Meanwhile, Hamlet's emotional turmoil is foreshadowed through his interactions and the burden of expectations from others, particularly after the recent death of his father. Together, their struggles evoke compassion from the audience as they navigate a world filled with familial obligations and societal constraints.