Wings wound not “slide out” so easily when taking off the top. They only slide one direction.

My guess is he’s less than a year old in earth years. He was created and hatched from a capsule, much like we see in the TV series. Depending on when he was discovered and presented to the galactic federation, he could be days old, technically.

Not surprised its unrecognized. The movie is a hidden gem.

Stitch is assigned male