Looking at the Maltese public transport page for non-personalised tickets, following on from my earlier question on Tallinja cards, I see that they offer a 12-trip card for €15.
I'm not sure if I'll need 12 trips on my upcoming trip, but I can see us getting through 6 trips each. So, sharing a single card would be good, if it's allowed, which I'm not sure it is.
Is it possible for two people to board with a single 12-trip non-personalised tallinja card, and both tap in / validate with it? (Using up 2 of the trips, of course!). Or is it impossible for multiple people to use trips from those at the same time, needing their own card if they're travelling together?