I bought an international flight to Europe that allows 30kg of luggage to check in. Most of my traveling will be done via train around Europe where luggage weight doesn't matter (I hope right?), but 2 legs of my trip involved taking flights. All flights I could find, for example Rome to Barcelona only allows max 23kg, with heave penalties above.
What weight of luggage is the norm to take on a trip, is it 23kg?
Thanks for reading this long message!