From a positive thinking perspective, it makes perfect sense for PSG to target Barca's young players and PSG is taking advantage of the situation Barca is currently experiencing in order to get big profits to improve its finances.
Meanwhile, from negative thinking, it is impossible for PSG to have interest in young players who do not have experience because this club prefers to bring in experienced or professional players.
On the other hand, Barca will also not let go of Lamine Yamal before getting a better replacement for this young player.
Unless PSG has a new strategy and makes a very big offer to Barca, maybe that could happen but for me it's very unlikely.
It's going to be a really good and excellent catch for PSG if they are able to get yamal, that guy is such an exceptional player in Barcelona, I literally had to watch some Barcelona games just so I can see him play at some points, every bit of his games to me was a master piece, he's a really fast rising young talent that any team who gets him should take advantage of because in the nearest future, he's going to be a top rated player if he maintains his current form far long enough into the future. Barcelona will literally find it difficult letting go of yamal after seeing his epic performance over the season, altho they will make some good money of his sales if Barcelona eventually decides to let go and PSG is financially stable enough to taking up the task and buying him over to PSG. The financial prejudice of Barcelona will be a very valid reason to let go of such good classic player if they eventually agree to the biddings of PSG , but for now there have been no official statement in that regards so let's keep it speculative.