Jeri, a subjective answer to your question. I wear socks with sandals sometimes because;
A/ I've had sunburned feet, and once is enough.
B/ My feet do get wet when walking on a hot day, and make sucking/farting noises when sockless. On the sandal, I haste to add.

I only wear sock/sandal combinations with long trousers, because I don't want my lily-white legs to get burned either. On the rare occasions that I wear shorts, I'm barefoot or in trainers, with socks.

As I said on the other thread on this topic, James Bond wore sandals in Jamaica, with socks. How cool do you want?
Mind you, he also smoked, drank cocktails, and didn't like tea. I suppose pobody's nerfect.

On one occasion a young lady criticised my attire (can't remember why) and I pointed out to her that I didn't accept sartorial advice from people wearing legwarmers.
Didn't go down awfully well.