If you are scared then only sell to an exchange, but self custody in the mean time. The brave individuals will sell their coin p2p, and good for them.
You do not need to sell it. Just use a utxo to buy a soda in El Salvador and after 10 transactions someone uses it to commit a crime. They go back in the transactions and your name is the only one that comes up because you used a KYC exchange to buy #btc... Next thing you know you are in a cell somewhere. Possible scenario?
Sell/Spend whatever. You sold your utxo for a soda. You spent your utxo for a soda. Obviously if you are afraid then only sell/spend to an exchange. If you are brave, spend it in El Salvador. You do you. The issue is people aren't aware of the risks.
Buy Monero - use it as a store of value / or if you think BTC is better in that regard despite having x2 inflation and a higher supply exchange trustlessly via atomic swap - then once you want to sell either to a DEX/CEX for more fiat shitcoins or a merchant simply go back to Monero and enjoy the power of uncompromised privacy and true fungibility. The fee for the conversion you pay is the price for using BTC as a store of value.
I believe you should have both and just hodl them for a rainy day. If that day don't come, just leave it for the kids. Spending BTC would become increasingly dangerous I suppose. When the kids spend it you are already dead so KYC won't matter then, since they have the plausible deniability of not knowing about your stash, which was lost in a boating accident.