tbh my favorite thing about Najia asking how her daughter and the Doctor know each other and her asking if they are dating is that the situation wasn't taken as a joke by any of the characters, nor as a weird question but also it wasn't posed as a joke for the audience to laugh at, like it was just a normal and logical way for things to happen
Yeah!!! That was actually a brilliant writing choice to:
Introduce Yaz as potentially bisexual (since Najia asked that question to Ryan too)
Get insight into how apparently open-minded Yaz’s Mom/family is, and learning more about Najia’s personality (curious, stern, protective etc) so she’s not just some bland secondary character. Same for the Doctor, although we did have characterization on her beforehand to know she wouldn’t take offense/laugh/etc. But still!
Get a feel of what the characters’ relationships are for us viewers, because it’s not always easy to have slow build-up in a TV show that changes its set of characters every 10/12 episodes! Knowing where Ryan & Yaz and even Thirteen & Yaz are at at this point in the story is very nice
Get hilarious and sweet scenes
All in all 10/10, smart writing, LOVED IT