Now I think that this will really become automatic for experienced players and they almost never make such bets so that they will be very upset in case of a loss.
Apparently, it is precisely this skill in calculating the amount that should be bet on a game in each specific situation that should be considered the highest skill in the career of any player, whom we all define as very experienced.
An experienced players really different than us who doesn't have much experience like them. We play gambling as what we want and not chase any win but we only want to enjoy the game. They can act based on the situation whether they will using parlay or teaser. But for us, it seems difficult to know the situation and adapt it.
For those who doesn't familiar with both teaser or parlay, they don't have to try it and just stick to what they know. Even they just place their bet for fun and not for making money. But that will be different if they want to make money from gambling. They must learn more things to have skills and maybe they should learn more about teaser and parlay. That will help them to develop their skills into better.