I will be visiting Milan soon and noticed that the metro system supports contactless payments like Google Pay. I will be traveling with my mom, whose phone likely does not support this feature.
I am wondering if it is possible to tap twice in a row using the same device to pay for both of us, for example tapping once for her entry and then again for mine.
If that is not allowed, I understand that tickets can be purchased at station machines, but I wanted to check if this could serve as a backup option in case the machines are not working.
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