You sure can, traveller.
There are a couple of ways you can share your jolli data.
Hotspot it. No, this isn’t the new chachaslide. Hotspotting is linking your phones data to someone elses device. All you have to do is head to ‘Personal hotspot’ in your settings (clue is in the name), find your phone and hit ‘allow others to join’. Or you can enable family sharing with Apple and if your Apple ID is connected to someone else's you can hotspot their data too.
If you’d rather give your friends or family their own data that’s pretty simple too. Order extra jolli trips to the same destination and send the QR code to your chosen ones to download to their phones. You can manage any top ups needed as and when the kids burn through the data!