Can you use WiFi without a SIM card?
Yes, it is possible to use WiFi without a SIM card. A SIM card is not required for accessing WiFi. If you have a device that is WiFi enabled (nearly all devices are these days), then you should be able to connect to any public WiFi network.
Keep in mind that relying solely on public WiFi can be risky, as it is not always secure. If you know that you will be away from your regular home network, consider a prepaid eSIM for consistent online connectivity. With access to mobile data anywhere you go (without the need of a physical SIM card), an eSIM is perfect for staying connected beyond WiFi zones.