The problem with the term ‘cloud’ is that it feels like something nebulous, something you can’t touch or feel or get your hands on. But if you use ‘cloud’ storage, your files are not disappearing into the ether. They are going into a data center that is quite physical.
In fact, unless you work for one of the largest companies in the world, your files are going into a facility that offers more security, redundancy, safety and environmental and operational efficiency than anything you could build yourself.