Children understand more than we expect and less than we fear. The most important thing is honesty in language they can hold. These are starting points — you know your child.
Very young children
Under 3 years
Keep it very simple. "Rosie died. She won't be coming back. We're sad."
Don't expect them to understand permanence — they may ask repeatedly where the pet is. Answer calmly each time.
Model your own sadness simply. "I miss her. It's okay to feel sad."
Maintain their routines as much as possible.
Don't involve them in the appointment unless your vet agrees it's appropriate.
Avoid saying
"Went to sleep" or "went away" — creates fear of sleep and abandonment
"We lost them" — implies the pet can be found
Young children
Ages 3 – 6
Be direct and use real words. "Our dog is very sick and is going to die soon."
Explain what death means in plain terms. "When something dies, it can't breathe or move or feel anymore. It doesn't hurt."
Let them ask questions and answer honestly, even when the answers are hard.
Give them a role if they want one — drawing a picture, saying goodbye, being present.
Expect magical thinking — they may believe they caused it. Reassure them clearly.
Avoid saying
"Put to sleep" — creates fear of anesthesia and sleep
"In a better place" without more explanation
Older children
Ages 7 – 12
Tell them directly and give them time to ask questions. Don't minimize or rush past the hard parts.
Explain euthanasia honestly if it applies. "The vet will give her medicine that will stop her heart. It won't hurt her. We're choosing this because we love her."
Let them decide whether to be present at the appointment. Respect their answer either way.
Let them grieve in their own way — some children get quiet, some get angry, some seem fine and then fall apart later.
Watch for grief showing up as behavior changes at school or with friends.
Avoid saying
"You need to be strong for the family"
"We can get a new one soon"
Teenagers
Ages 13 and up
Talk to them like the young adults they are. Share your own grief honestly. Let them see that this is hard for you too.
Give them agency — in the decision if appropriate, in being present, in how they grieve.
Understand that their grief may look like withdrawal, irritability, or apparent indifference. Don't take any of it personally.
Don't force them to process out loud or on your timeline. Make yourself available without pressure.
Check in gently in the days and weeks after. A lot can surface slowly.
Avoid saying
"It's just a dog / cat" — this invalidates real grief
"You should be over this by now"
If your child is struggling significantly after a pet loss, a school counselor or child therapist can help. Grief over a pet is real grief and deserves real support.