Many of the customers buying a netbook have no idea it’s not a PC. When they think they bought a fully functioning computer, they put stuff on it. Then boom, they are out of space and it crashes. Now if they understood what they were buying then they would buy a larger SD card for additional storage. The problem is the customer doesn’t know about any of the things I previously explained, more than likely whoever sold it to them doesn’t know either.
Any netbooks that have Windows 10 is all but guaranteed to crash at some point because of Windows updates. When you keep Windows 10 updated sooner or later you will run out of space. Should you not keep Windows 10 updated then sooner or later the operating system will be out of date. Damned if you do, damned if you don’t! See: Are HP Stream Laptops Good? NO!