No way does it mean I would travel with a lot of money in my phone Cryptocurrency wallet, but in my opinion ideally nobody should ever cross border carrying ANY hint about owning cryptocurrencies. This can easily land anybody in either unnecessary suspicion or unnecessary trouble. Now imagine you are crossing into another country where just recently a terror attack happened and you are the first to give hints about using Cryptocurrencies. Why potentially put yourself on a list?
This is does not only land you on unnecessary suspicion and troubles with the government. This will certainly also land you as a kidnapping for ransom risk and these people will not stop unless they have taken everything from you. Also, giving them everything does not assure you that you will come out with your life. This is certainly why government agencies have a rule of no real negotiations with these type of people. They only pretend to negotiate to keep the victim alive and give them time to find the location.
On social media, you will see these people who are new to the cryptospace take selfies with their wallets. They are making it very much easy for criminals and for the government to track them hehehe.