James Gasik
We don't talk about Pun-Pun
Felix could also ready an action to attack if the goblin rushes him, or take the dodge action.Also, I don't DM that way, and I don't appreciate it if the DM does, when I'm playing.
The goblins are smart enough to figure out the same thing.
Now at higher levels, a melee Fighter winning initiative might end up in a situation where they can't take their extra attacks on the first turn. That's why every character needs to have ways to act and react.*
It's like a Cleric who wants to go last so they can heal after the first round of attacks, but they could in theory cast a spell to prevent damage in the first place. The game affords you both opportunities and over the course of many battles, both scenarios play out.
*Sometimes the game doesn't a character these tools innately, but that's a whole different discussion.