The movie is trying to tell us that we have to grow up and most people like me who grew up with Digimon agree, i do too but growing up doesn't mean we can't revisit our favorite things from childhood and enjoy them even more with the good memories they bring us, we can still has adults let our selves swim in our own fantasies just to make adult life not totally boring. i grew up im 25 i have a job now but i always revisit my favorite shows specially Digimon more recently i haven't watched Digimon since like 2007 (age 12) and i couldn't buy the movies and the series because i couldn't afford it has a kid, i understand the message of the movie now and why by the ending of Adventure 02 the Digimon eventually return to their partners after they grew up and became stable adults, so when i grew up i got Digimon back because now i have a stable life and could afford to buy the whole Digimon series and movies i had to first grow up to do that that's what Matt and Tai had to do has well so their partners came back, i hope you can all understand what i mean. if you don't wanna return to Digimon or other childhood things it's fine, i do believe that after a hard day of work going back to these shows is just so relaxing and refreshing and all the worries of adult life go away for a while. Remember growing up doesn't have to be boring Digimon and other things you once enjoyed can go away but they always come back if you wish it with all your heart.
