I took a few years of Latin as a kid. I remember that I enjoyed learning about Ancient Rome, but realized I didn't want to sink hundreds of hours learning a language just to read some old books.

I ended up spending a few years studying Spanish in college, I'm reasonably conversational now and met my wife, who's from Puerto Rico, in the process.

Even if my wife wasn't Puerto Rican, I would teach my kids Spanish. Grammatically it's far easier than Latin and will connect them with culture and millions of speakers that are alive today.