Because it’s available to everyone, including kids and elderly, and does not need high upfront payments. I can just move to Madrid and move anywhere in the cit

Because it’s available to everyone, including kids and elderly, and does not need high upfront payments. I can just move to Madrid and move anywhere in the city for around 1-2€ per trip without upfront investment of 20.000€ for a car, plus insurance, maintenance, fuel and taxes.