Simple enough question. What are your thoughts?
No. Emphatically no.
PCs need to have the resources to complete a full day of adventure, with all sorts of tricks and tools to make use of. NPCs only need to exist for however long they appear (usually only one scene/battle/situation at a time, and often only one such scene/battle/situation
ever).
It's a wonderful idea, making everything work by exactly the same rules. The siren song of beautiful symmetry, verisimilitude, simplicity. All of those hide the actual in-game effect, which makes designing and running non-player characters (mooks/minions, soldiers, bosses, monsters, allies, etc.)
dramatically more difficult. Any time or headspace savings you might get from building NPCs like PCs will be completely overwhelmed by the balance and complexity issues that arise from building monsters exactly the same as PCs.
3rd edition proved that this approach was unworkable. It is a seductively beautiful but fatal design choice. Build your monster-design-rules to make fun, interesting, easy-to-run, engaging monsters. If that requires that they work by
somewhat different rules compared to PCs,
so be it. They are game constructs designed to produce a particular feeling in the audience.
It's the same as asking, "Should extras get the same presence in a movie as the main characters?" Doing so would be the
ruin of almost every existing good movie out there.