Issue #32449: TG02B TGTalkGate
The "gate" is set at startup. This causes considerable problems with missing dialogue. Should be at completion.
Of course, I'm wondering why the "gate" exists at all, since a quest stage could have been used instead. But ours is not to reason why....
Also, the trainers should be conditioned on the "gate", so that they do not train you until you have been welcomed into the guild.
Discussed at https://www.afkmods.com/index.php?/topic/5763-thieves-guild-meet-the-family-dialogue-never-heard/
Nobody weighed in on details such as not giving dialogue saying "I've never seen anyone with skills like yours" until you actually have some advanced skills, so I've left that untouched for now.