And a Daiquiri is a rum-based sour. However, both the Mojito and the Daiquiri have their own nuances and backstories. So yes, there’s more to it than that.
Okay, thank you. I don't know the history. So they were created independently of each other or perhaps one evolved away from the other. Just asking for a steer, not an essay (although maybe an essay would be fascinating 🙂).
If you want to boil it down, the dilution is the main difference I think. A Daiquiri is shaken in ice and served up (dilution ceases after serving) as a Sour. A Mojito is stirred in crushed or cubed ice and the ice stays in the glass with an extra dash of soda water so its a larger volume Collins type cocktail.
It being mid-Summer, I think we'd appreciate the Mojito over the Daiquiri as it stays colder for longer and has more chilled liquid to down.