I get firm in my language when people spread direct misinformation to others - it's a personal annoyance of mine, and I apologise for that. If you'll just admit that you initially said that lock picking is restricted by class, told someone else that it was when they asked if it was that way in 5e, and that you are in fact mistaken in that claim and would like to retract it, I'll be quite content.
First of all your twisting what I said, nowhere in my response to Ranxerox did I say the word "restricted". They asked if that is a thing in 5e and I said "yes" based on what I have read. Only the rogue has a proficiency on Thieves tool and only the rogue has the archetype of thief. It even says in the TPH that Rogues can refine their skills in climbing, disarming traps and opening locks. {If the DM wishes to give everyone that proficiency so be it but if you want a rogue to be unique it would be better if they are the only ones with that proficiency and all the other classes should have a disadvantage (my opinion)}.
