technically you can. why? 2 words: Satoshi Nakamoto.
It's arguable that the things that Satoshi has never actually implicated his real life identity. His likely use of a VPN/Tor has probably made it much more difficult for people to trace him.
IMO..
satoshi is an
anonymous group, not a
real person. if he is a real person we can track him because even if he uses VPN or Tor network when he exchanges his Bitcoin for fiat money on the exchange, his identity will be found out because on average the exchange tracks the identity of the owner of Bitcoin who has a large amount..
We're talking about VPNs and blablabla. What if you make a transaction, using cafeteria's free Wi-Fi? I think you would be covered...
you are wrong, the wifi network at the cafeteria is a favorite place for hackers because there are tens or even hundreds of internet activities going on. always on guard, do not use a free wifi network in a cafe if you frequently make payment transactions through your laptop or smartphone. the safest way to fatherly protect yourself is to use Modems, Modems really make a new IP..