Eating an apple is messy? And if you don't have time to take a minute or so to eat and apple, you are way too busy and you need to change your life style.

You must be kidding

Eating an orange involves a great deal of time and effort, and results in a lot of mess and stickiness.

Sure but the journey has a value of its own. I find preparing food, particularly monotonous peeling and chopping to be almost zen like.

That's highly subjective. I don't, for example.

Sure it's very subjective.

On the other extreme I think something like Soylent is downright terrible.

And I love it! I'm enjoying some right now, while my coworkers argue about where to go and spend $10 for lunch.

Do you also avoid going to the bathroom and brushing teeth? These activities seem on the same level of time and effort and also can involve a lot of mess and stickiness.

Find me a faster and cleaner way of keeping my teeth clean or my bowels/bladder empty,and I'll be throwing cash at you faster than you know what to do with.

Messy, sure, but 'a great deal of time an effort'? Really? It takes a matter of seconds to peel an orange.

Shower orange. Look it up on reddit :)