I think not only idiots and traders are buying this coin.
You're right, it's just idiots
People of Venezuela believe that Petro will be supported by the government
That's the best reason Venezuelans have not to use this new currency. The Venezuelan government tried this trick at least once recently (re-introduced the Bolivar as the "Fuerte Bolivar"). The "Fuerte" ("strong" in Spanish) version crashed just the same as the original.
Venezuelan people are unlikely to fall for the same trick 3 times.
unlike other cryptos which being autocratic regime as they are they can simply ban.
The Venezuelan government did "simply" ban cryptocurrencies, and it simply didn't work. Now Maduro + cronies want to pretend it was their idea the whole time, lol
It's possible that in the light of ongoing hyperinflation many citizens of Venezuela see the coin as their only hope in attempts of saving at least part of their life savings. Unless Maduro will be overthrown in April petro might survive the next couple of years imo.
Very unlikely. People have already invested in the now "legal" (lol) cryptocurrencies in Venezuela, they've already disposed of the worthless Venezuelan state issued money. They're starting from nothing in many ways, and very unlikely to trust a government managed currency for a long, long time. Hopefully never.
You've made 5 statements, all of which were wrong. That's 0 out of 5.