When you have an internet connected device should you really be just downloading and taking files from strangers ?
One , you do not know what you are downloading in many cases and you don’t know what comes with these files.
Two – usb devices that are passed around should not just randomly be inserted into computers – you dont know what is on them and many organisations will even go to the extreme of glueing up the usb ports.
Three – free software usually comes with some caveats – which can include malware , adware
So be careful and don’t take candy from strangers