... I understand that seats will be automatically assigned. Does this happen at the time that I purchase my tickets, or sometime between then and my travel date? If I don't like the assigned seats, can I then choose to pay to change to my own seat choices, or is it just the one shot when you purchase the tickets?
There's four of us and two short legs of the trip, so 16 euros to reserve our seats. Not a big expense, but for the short trips I don't really care that much about seating arrangements; just that we all be seated together.
When my family flies with our young kids we feel compelled to purchase the (exorbitant) seat reservations, because the airlines won't assign seats until the very end and it's very possible that there won't be four seats together. I'll probably spend the money in the end, but just curious to know how it works on TrenItalia.