Kid's Camera: Can a Kids Camera Be Used as a Webcam?
Some models can, but most cannot — and it is not a feature most brands prioritize. If the product listing or manual mentions "PC camera mode" or "webcam mode," the camera can be used as a basic webcam when connected to a computer via USB. Video quality in this mode tends to be grainy and low-framerate (the sensor and USB bandwidth are both limited).
For the majority of kids cameras that don't support webcam mode, using a dedicated webcam or an old smartphone webcam app is a better experience.
Practical advice: Don't buy a kids camera for webcam use. If it happens to have the feature, consider it a bonus, not a reason to purchase.