This back story for Mila, is interesting even for adults. Still a story where teen don't tryst adults or adults are represented as people who don't listen, like Mila's disconnected mother. That said the universes are interesting, the operators are scary and the bad guy/gal are foreboding. I haven't watched all the episodes, yet, so no spoilers. I can't say if today's teens would enjoy this film, but it's a great opportunity to introduce young people to foreign films that aren't in their native language and get them to practice reading subtitles. I prefer this to dubbing, Dubbing gets in the way of viewing actors performances in my opinion. I have watched many films in Spanish, Mandarin and French, but only a few in Portuguese. It was fun.
I do maintain that the adults in teen movies are poorly written, lacking depth and sensitivity. Given how poorly Mila's mother treated her, why is she even looking for her? What kind of back story doesn't explain this incongruous? Maybe they will do an episode to cover it. I hope the future episodes treat adults with more respect and realism. As these Multiverses are dangerous and the operators destroy them, it's a serious topic that I believe teenagerscwould appreciate. Treating it lightly seems very unlikely.