. . . that the organisation / project inviting you should pay your travel costs?
I was invited a while ago to speak at an event - this will require travel costs amounting to £90. I have just found out that the organiser cannot reimburse these costs. Perhaps I should have ascertained this prior to accepting the invitation, but the unspoken rule in my field is that you invite someone to speak at your event, you cover their costs. I am quite tempted to pull out now, tbh, since I am reluctant to pay out of my own pocket for this, though the event is only a few weeks away. But I am not sure whether this is my fault for not asking, or theirs for not mentioning their lack of funds when extending the invitation.
Should I pull out, or pay up and put it down to experience?