Unless that federal "benefit" is a security clearance. I don't think that there is any direct rule against it, but the questions they ask on the form makes it sound as if it is really something you don't want to have.
I could certainly see some benefits of becoming a citizen. 1. Placing property in your own name. 2. Placing a business in your own name. 3. You don't have to worry about deportation if you tick off a local. 4. You could except money for your vote every election cycle. 5. You could go to politician's election "parties" and eat/party for free. 6. There are certain benefits that a Asian passport gives you. (Some countries wave tourist visa fees.) I'm sure there are some more that I'm not thinking of right now. As for having a child by a local man: In what way is it different from some of these old foreigners popping out kids from a young filipina? A bit of a double standard isn't it?
7. Your funeral lasts 40 days and people come to your OLD home and eat and drink all you food & Tanduay 8. Takes 40 days for your family who never did anything to benefit you, to divy up all the stuff you worked your whole life for. This could become a new thread.
My husband was Filipino, born and raised. Moved to the U.S., worked there and stayed there 40 years. Came back here at age 67, already had been receiving SS and pension for years. He reclaimed his citizenship here (dual) and never lost his SS and pension from the states because you don't have to renounce your U.S. citizenship. Maybe it is different in other countries, though.