This is true. A person may be traveling due to a family emergency, not just for vacation.
I guess what I am curious about is why a person would need to take TP. Are you expected to provide your own where you are staying? I know if you are renting a vacation house, etc. it is expected, but in hotels or similar accommodations TP is usually provided. If you are staying with family, they will have TP at their homes. Was bringing some from home not an option? (When my DH and I went on our honeymoon, we stayed at a beach house and had to provide all of our own toiletries - we brought TP, tissues, paper towels, etc. with us since they were more expensive at the stores near where we were staying).
If you are vacationing on a budget, truthfully, TP is one of the lowest expenses. If you have to spend so little money that a few dollars on TP is unreasonable, then I agree with previous posters who have suggested that it is not wise for you to be going on vacation. If you are travelling for other reasons, I find it hard to imagine a scenario in which you “need” to steal TP - why not bring it from home?