Is it possible to view someone else's whatsapp on my phone?

My kid is on WhatsApp a lot and I want to know what they’re seeing on my own phone. I’ve heard of apps or ways to do this but not sure what’s real or safe. Can anyone suggest a method that actually works?

Monitoring someone else’s WhatsApp without their consent is often illegal and unsafe. The most reliable method is talking directly with your kid about their app usage.