You need foreign currencies for many reasons. The very first need is when you think to travel to a new country. You need to convert some money in that currency initially. If you want to take “advance of your quota in dollars to pesos” (also known as “Avance de su Cupo en dólares a Pesos“) you should visit the Forex currency advisor.
You should know that at the very first stage of the journey, you can need some money at the airport and at the flight. On the flight, you may have the need to purchase some essential things. Besides, when you are at the airport in a foreign country, you must have some cash of that currency for your safety.
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With your previous currency, you will be alike cashless there. Your currency will not work there. You may need to buy a bottle of water or some emergency medicines at the airport.
An airport money transfer is not a good choice as you may have risks anytime at an unknown place. Rather it is better to carry some currency of the country you are visiting for your purpose. You may have a personal or professional reason to visit a place that is totally unknown to you.
You need to hire transport to move to your destination from the airport. The local taxi will not accept your currency and you will not convince them actually.
You are a foreign person to them and in many countries, strangers are not treated nicely. Thus, for your safety, it is good to carry some extra money in your pocket.