Also keep in mind that Luke wanted both. I don't know that we've seen any indication that Grogu has ever wanted to be a Jedi. Hell getting him to do a single trick is like pulling teeth unless he's bribed with something shiny, lol.Luke himself chose to not give up his connections to his friends, and pursued being a Jedi.
If they show Grogu was in fact allowed to choose both great!
Remember it was Mando that dictated he go train with Luke, he was the one (in Mando S2 anyway) who actually gave him no choice at all. Luke showed more compassion by letting Grogu decide.