One of the things we should understand about El Salvadorans is the fact that there is high rate of poverty in that region and most of the citizens saw the $30 airdrop on their chivo wallet as a means to earn a living and help them and they family and most of the did not take time to utilize the opportunity to own Bitcoin and try the thing out for long term goals.
I can so much relate on what you said, it is true. I am a traveller, I have gone to a country where the citizens see anything from the government as a national cake to be share. There was this program to help local farmers and traders with a loan to be repaid with zero interest and span across a long period of time. The farmers collected the loan and refuse to pay back because they believed it is their money that they collected back.
That could be the same issues with El Salvador, I know that poverty and entitlement mindset. When most of them saw the $30 they quickly converted to fiat and solve immediate problem. Should I blame them? No.
Someone who struggles to get 1 meal a day shouldn't leave $30 lying in their wallet. What if they left it in the wallet, by now it should worth nothing more than $12.
The best way is for the government to continue creating bitcoin awareness campaigns rather than airdrop bitcoin to people who don't know its value.