I don't think it will be airdropped to wallets as alt airdrops happen. It will probably be given to wallets where a confirmed citizen of El Salvador is validated and thinking of using BTC in his/her future transactions. This will be a good motivation for normal people to start using crypto in day-to-day life and also use it as a regular currency.
If they want to make it safe and secure then they must not airdrop the funds because this can be manipulated by others that knows deeper in crypto .
Maybe giving in KYC proven wallet is much safer and assured .
and besides why need to put it in airdrop when the government needed a specifications of the names that already received the amount .
It's already the legal tender in El Salvador. It is trying to draw people's attention to Bitcoin by distributing some Bitcoins to every adults. As far as I remember, it was worth 30 dollars. I think it's a quite good amount to have a good start in this market. I hope the government reaches its goal and people start using Bitcoin often after it.
It is not the amount that matters here mate but the idea that the government wanted people to have knowledge and experience in having and using bitcoin , and that will help the spread and usage of the coins nationwide .