Two Riddles...

Please read the riddles and answer the questions.(use English)

1.You see me in a field.
I look like a person.
I wear old clothes.
I am not afraid of the dark or cold.
I am doing a good job.
Birds never come to rob.

i. What am I?

2.We are purple, red or green.
Sometimes sour, sometimes sweet.
Found in cakes,
Juice or shakes.
Oh no! We do not want to
Go into the big dark hole.

i. What are we?

ii. What is the "big dark hole"?