The rise of the modern way of thinking has resulted in the creation of a situation wherein younger people are almost entirely moving away from how things were done in years gone by. This is usually a very good thing since it allows us to break outside of the boxes that we have built all around us, but it is important not to let this mindset go too far. Something being old does not automatically make it obsolete, and on occasion adhering to the traditional way of doing various things can pay off dividends for you in the long run.
A great example of this that we can think of is the use of Copper Metal Kards in the business world. Suffice it to say that business cards seem ridiculously old fashioned now that we have things like emails and other forms of electronic community, but that does not change the fact that bigwigs of numerous industries will expect you to give them one if you want to work with them. Not giving them a card could ruffle their feathers in the worst way possible, and this would make it so that they would be less likely to hire you or give you money in exchange for products or services.
No business can survive for very long without inspiring collaboration in others, and since you need business cards to be able to collaborate with well established titans of industry it helps to have at least some of them on hand. Business cards are not out of fashion as of yet, and you need only step outside of your comfort zone and venture into the real world to see this.