It seems natural for products to come in multiple sizes, but dakimakura have the odd distinction of their two primary size options being only 10cm apart from each other.
It’s a weird choice, but there’s a reason for it.
On a community level, the most dangerous mentality to internalize is one that wholeheartedly vilifies “gatekeeping.”
Unlike many of the other servers I’m a member of, the Iyashikei Discord server doesn’t have a “debate” or “serious discussion” channel.
We often draw a false dichotomy in fandom. You’re either enthusiastic with shallow knowledge, or you’re bitter and negative with deep knowledge.
Over time, playing VNs can make the reality of life – it’s impermanence, it’s linearity – seem like a drag.
Over time you will understand and adapt to it like the con-goer pros. Don't fret, just be ready for anything.