I friend of mine bought recently some BTC from ATMs in Switzerland.
Because Switzerland has a limit of 1000 CHF per month without KYC on ATMs,
he bought 10 times 1000 each, with fake phone number.
Find Bitcoin ATMs in Switzerland.
https://coinatmradar.com/bitcoin-atm-near-me/[/quote]
He wasn't money laundering, just using his own legal money for HODL,
while he didn't want to do KYC.
Now he is wondering whether he might get problems cashing out in the future.
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If he could do it for purchases, he can do it similarly for selling in future.
The bottom line, and also a biggest disadavantage with Bitcoin ATMs, is fee. You will have to pay very expensive fee for purchase and sale, and if Bitcoin ATM is not your friend's last choice, let tell him to find another method.
https://kycnot.me/Bitcoin ATM: Definition, Fees, and locations.Bitcoin ATM Fees
Customers are charged a service fee for using a Bitcoin ATM. This fee is typically charged as a percentage of the transaction rather than a fixed dollar value. Bitcoin ATMs can be very high, and the exchange rates offered may not be as competitive as could be found elsewhere. For example, Bitcoin ATM operator CoinFlip charges between 4.99% and 21.90% of your total transaction amount, compared to paying between $0.49 for a Bitcoin purchase of $1 to $4.99 and 1.5% on a purchase of $1,000 or more using Paypal.