It also requires using knowledge my character doesn't have.
Since my characters don't trek half way across the map to get a weapon I know exists but they don't the only energy weapons they're likely to find early on are the mediocre and expensive to repair laser pistol and rifle. Early on I much prefer small guns. Easy to get, rarely need to buy ammo or pay for repairs, and outperform the commonly available energy weapons.
You forgot to mention that small guns are also not in character for many characters, therefore they are not an option for many characters. This is the exact same problem as your view that your character does not have certain knowledge. However, I was not suggesting trekking across the wasteland with the goal of picking up a weapon. I was merely pointing out that they are there and anyone who is exploring thoroughly will almost surely find them early on without planning to find them.
I'm not sure where the comment about expensive to repair laser pistol and/ rifle comes from. I don't find them expensive to repair in my games.
Likewise, energy weapons outperform small guns as far as damage and other features, so I'm not sure where that comment came from, either. This can be seen from the official guide. Then again, that's why they are not quite as commonly available.
My characters do not like small guns because the entire idea of projectile weapons simply goes against their overall build as well as research interests. I leave the small guns to my shoujo companions.
To each their own. The point is to have fun.