imagine this: matt meets the voltron team and notices that keith's there. he then proceeds to unsubtly comment on WHAT A COINCIDENCE IT IS (it must be fated eh wink nudge) that here he is, the wonderboy that hung around shiro / that shiro occasionally (read: often) namedropped during their journey to kerberos.
oh i like this!! i mean, the kerberos crew were all crammed together on this tiny ship for–six months, i think pidge said? and that’s a long time, so of course you start swapping stories and stuff, and since shiro knows about katie we can infer the holts must have talked about her a lot. i mean, shes a genius who can build tech out of spare parts that works even better than the garrison’s presumably multi-billion dollar equipment, so you know they mustve had a lot to talk about. shiro seems familiar with her family, and pidge mentions how close matt and sam always were with their crews, and yet…she doesnt seem to know much about shiro??
so i really do think shiro isnt close with his family at all. He and keith are the only ones who never mention missing their families or earth. and i mean, keith is an orphan alien so it makes sense a lot of his backstory is mysterious, and we at least see his dad and the shack as some semblance of home. but shiro? we get nothing. i have to wonder whats going on with him, because after being gone a year and thought dead, i would think he’d miss his family even more. or at least ask about what they did for his funeral or something. with pidge at least, you’d think hed divulge something about missing his family after the mission too, since she knows what he’s going through. but he seems??? really private and distant about it?? he even seems to think of sam holt as more of a father figure than his own, since the advice he gives pidge comes from sam instead of his own father (and this is before he realizes who pidge is)
even when he arrives back on earth, the only actual welcome home he gets is from keith, and in keith’s very own home no less. (theres also the fact that keith apparently has a change of clothes in shiro’s size waiting for him, which could imply that shiro either left them himself or keith stashed a dead man’s stuff away for a year just in case he magically showed up, but thats all so vague im gonna just leave it at that) but point is, i think shiro’s relationship with keith is the closest we see to him having any kind of home or family. (also, i think shiro’s homecoming at keith’s place kinda parallels when keith returns to the shack and his dad welcomes him back in bom. so i think the desert shack definitely equals home for keith, and by associating shiro with it the writers further establish that shiro very much does have a home with him)
so, anyway, in lieu of his family i could imagine shiro telling the holts all about keith. oh hes the greatest pilot we’ve ever seen, he broke all my records and you should see how good he is at close combat! kind of quiet and runs off on his own, but in the simulator he always puts his team first. A natural born leader who really cares about his crew. and shiro just like beams every time he talks about him, and by the time theyre past jupiter the holts are probably like if i have to hear one more word about keith kogane–
oh also! you know how pidge has that photo of when matt left? i like to think matt had a copy too that he kept back on the ship.
and how sad would it be if shiro had one of him and keith before takeoff that was either left on the shuttle or confiscated along with his suit and stuff by the galra but anyway ya i like the idea that shiro’s told matt about keith! he might have heard of him at least, being that keith was the top cadet back when matt and shiro were still at the garrison