Kind of like skyrim.
It seems odd I can't directly interact with locks and maybe traps.
If certain classes have affinity then make it easier with more time and resistant lockpics.
Also why can't I see how difficult the lock is before wasting lockpics on it?
This isn't Skyrim, it's Dungeons and Dragons. The ease of which lockpicking is done is based on the CHARACTER's skill with lockpicking, not your skill as the player. More time is not relevant. Harder locks should have a higher DC to pass the Thieves Tools check.
You should definitely be able to make an Investigation of the Lock/Trap and get an idea of how difficult it is, though. It definitely obnoxious design to combine breakable lockpicks with hidden difficulty levels. If you fail the Investigation check, you remain unsure of the difficulty, otherwise you are told of the DC.
I think the point is that just like in Skyrim any character could lockpick (no matter that it was tied to the player's ability) in BG3 too any character can do the deed and its up to the luck (instead of fine motor skills) of the player if the action success or do not success.
What's the point of having a Rogue (or Ranger) class if there is no visible difference for this class? I get their skills are improved by higher proficiency. Still I have the impression, and I'm not alone in this, that is almost an anonymous class, all characters can stealth, pickpocket, lockpick, poison and so on.
Rangers, wizards, clerics, warlocks, all have clearly distinctive traits and skills that can not be used by other classes (or that require the use of scrolls or to consume, for wizards that learn spells from scrolls, actions slots).
In Daggerfall, to me the best of the Elder Scrolls, lockpicking was difficult if you weren't a rogue, even wizards, who could create a "open target" spell, would have an hard time lockpicking (to make a spell with high chance of success the wizar have to expect an high consuption of mana), other classes have really hard times and have to try a lot of times.
Skyrim started the trend of characters that can do everything without cocern for class restrictions or story coherence (oh truth be told it was in Oblivion that the trend started, Skyrim just brought it to its full potential).
I would like to see the pure Rogue better caractherized with its own unique skills openly visible just like the other classes have.