You used 'the' before office and field but why you didn't use 'the' before home
Good question, my friend! As usual, I'm impressed with your careful study.
All of these are correct:
Robots will benefit me at home.
Robots will benefit me at the office.
Robots will benefit me at work.
Robots will benefit me at school.
Robots will benefit me at the park.
Why do we use 'the' sometimes and not at other times? It is because of the way language has developed over the course of generations.
This is correct, but it sounds strange:
I can use robots at the home.
So, it is very hard to get used to the conventions of any language. For now, all you need to know is this:
Robots benefit me at home.
Robots benefit me at work.
Robots benefit me at the house.
Robots benefit me at the office.Speak those aloud several times to program your brain with the conventions of English! :-)