Let them be, and you will be set free. You cannot control the experience of anyOne, so it’s safe to let go of your personality’s self righteous ideas about how their life should unfold.
Worry or concern for another person is a form of delusion that is born out of emotional (conditional) love, and which keeps energy of awareness bound to the experience of dis-ease. This false love not only feels conflicted when it manifests as worry, but taking worrisome thoughts to be true is like ‘asking’ for their essence to manifest in your experience.
The only moment that counts is Now, and by seeing worry for what it represents, you can allow its dissolution Now; and thus command the unfolding of your world from a perspective of liberation and wellbeing.