Syaoran is petrified by the idea of parenthood. The amount of responsibility involved in raising a kid isn’t lost on him; it haunts his sleep. He worries about teaching the kid magic and how to use a jian sword and having to restrain himself from rescuing the child from all the trouble they’re going to get into.
Sakura is excited to be a parent. She looks forward to holding the baby, singing to the baby, the baby laughing and learning to walk and talk and growing up. She dreams about teaching the child magic and introducing them to all the Sakura Cards and helping them make friends with Yue.
Sakura unironically hopes their child is just like Syaoran while Syaoran wishes vehemently for anything but.
In practice, they’re pretty good at the parent thing.
(They have lots of help. There’s Grandpa Fujitaka, who has cool videos of all the places he’s been on archeological digs; Uncle Yukito always has sweets to ruin the kid’s teeth, and Uncle Touya is by *far* the best relative, because he the best at tickle fights - even better than Mom - and he also is like a human jungle gym that two-year-old Baby Li can crawl all over. Aunt Tomoyo is threatening to spoil the child rotten with all the toys she brings. Kero is a terrible babysitter but an excellent playmate, and by the time the kid is 10 or so he’s also their diary-slash-mentor - Baby Li tells Kero everything. Yue is very bad at showing his affection and is not good with children, but he confesses, quietly, that he rather likes the child and can be convinced to do quiet activities with them from time to time, such as reading.)
Their greatest vice as a couple is that they both want their child to be happy at every moment. Their child - boy or girl (or neither, who knows) - is a combination of grossly sweet, kind Sakura-chan and responsible, quiet Syaoran-kun, and with a stubborn streak the size of Shinano river. They go through their terrible twos like a banshee, screaming their disappointment with the world not being exactly how they want it. Sakura and Syaoran are both pushovers and struggle valiantly with being firm but fair instead of just giving their kid the lollipop they want (but not the one they need right now). Syaoran is marginally better at this, but Sakura has to comfort him that he did the right thing later. Sakura masters compromise. (If you pick up your room, then you can have the lollipop!)
All three of them are completely hopeless at detecting outrageous lies.
Syaoran teaches their kid how to cook. Syaoran teaches them to taste their food often and how to chop onions. They cry together. Sakura teaches their kid how to do chores. Sakura teaches them to make chores into a game or a song so that it’s more fun.
Syaoran teaches their kid to be responsible and get their homework done. Sakura teaches their kid it’s okay to take a break and play outside first.
Syaoran teaches their kid how to sense magic and use ofuda. Sakura introduces their kid to the Cards. Their child gets into a great deal of mischief with Mirror for a while - at least until Touya visits and Mirror remembers she likes herself better when she’s being responsible.
Sakura is the second best ticklemaster after Touya. She is the number one best human carosel. And nothing beats taking a ride in Mom’s arms while she uses Fly.
Their child learns caution and observation from Syaoran. They learn to not rush into things, but to wait until they know everything they can, and how to use that knowledge to their advantage.
Their child learns trust and confidence from Sakura. Even when things seem scary, everything will surely be okay. They learn to believe in themselves, and to trust their friends. They know that in a dark, dangerous world, at the least their parents will never stop being there.
Sakura and Syaoran’s kid isn’t perfect - they’re a little arrogant, a little too self-assured, a little stubborn. But they are good-hearted, because they have parents that are good-hearted, and who value the good hearts of others.
They love their kid.
They love their kid no matter what they do or who they are.
And their kid knows it.