>>35569153>given that Rocket grunt had time to get married and have a kid who's old enough to be at school>using per sideline nostalgia bait to determine the timelineGen 7 takes place no more than 10 years or so past Gen 1/3.
Anabel, an actually important story character is said to have come through the Ultra Wormhole about 10 years prior and she was part of Gen 3 which is obviously what they were referencing there. This is Game Freak, they're very straightforward with the shit. They were not implying anything else with that.
Which fits with Red and Green's about 20-ish age since they were 11 originally and their age was obviously a nod to the series itself - the series was nearly 21 when it released as they appear to be.
B2/W2, specifically, take place about 7 years on from Gen 1 (as do X/Y as confirmed by one of the staff just before OR/AS was announced).
So if you're assuming 16 then she'd probably be 29 at most assuming the standard 2 or 3 year time skip since it would be 11 - 13 years later.