Thanks for sharing your experiences, MeganKi. I guess I am a type of asexual too as I could define myself as demisexual, which TBH I privately consider just being an emotionally healthy human being, rather than a sexual orientation, though I realize it's not my place to judge people who enjoy sex without emotional connection.
I'm still concerned that GG is not the appropriate venue for this. The problem with teaching kids about asexuality in a way that doesn't reference sexual acts or feelings, is that boiling it down to "and some people don't like anyone!" just doesn't sound accurate to me. Again, homosexuality can be described fairly accurately in terms of relatiinships--"some men marry/fall in love with/go on dates with other men."
Saying "like" is too unspecific as kids might use like in its general sense, "I like Jessica because she's my friend, but I don't like Susan anymore, she took my favourite pencil." Don't you have to get into clarifying this? "Oh I didn't mean like as in friends, I meant LIKE like, like boyfriends and girlfriends, like dating."
Fine to say "and some people don't want to date, fall in love, get married at all" but I don't see how it's necessary to tie that to a sexual orientation.
Some people won't want to pair up for a variety of reasons, not just because they are ace.
Some ace people might in fact get married or have sex, according to what you're telling us.
Maybe don't put ace in a box. Just explain to kids that having a variety of family types and friendships and relationships is no big deal, including being on your own if that's what you prefer.