Cash is used for small everyday purchases, but everything else is expected to be digital - bank accounts and debit/credit cards - I mean, if you're buying something big, wiring the money is free or almost free and fast, but getting that amount of cash requires significant fees and hassle; exactly the opposite of how it's in USA.
You could withdraw thousands of euros in cash and buy large things that way, but it would look strange because it is strange, as most people in the same situation would not do it and there seems to be no obvious reason why someone would want to do it that way as for (almost) everybody all their income is in the "banking world" and all the large amounts of physical cash exist only in some social niches that "the average person" meets only rarely or not at all.
You also don't get the cash immediately, but have to wait a minimum of several bank days. Also, as regulation against money laundry require, you must tell the bank as to the purpose of the withdraw and they are permitted to deny it.
Its much more than just "stop someone who steals your bank card".
So yes, in Sweden it is seriously not possible to get your hands on large amounts of cash on short notice.
Why would you want to pay for a notebook computer in cash? Sounds like quite an odd scenario.
Why is that? Tax evasion?
Wait, what? Are you seriously saying that if you want to pay cash for a $3,000 notebook computer, you have to make 2 different withdrawals a week apart to do that? How is that workable? What happens when you have an emergency and need more cash than that all at once? I mean, it doesn't come up frequently, but it comes up from time to time. Does writing a large check count? Or only physically withdrawing the money at a teller?