If you carry either a British or an Irish passport, you are eligible to apply for entry under the Visa Waiver, unless (I’m assuming) you have some reason you aren’t eligible , such as a criminal conviction or a medical ground for exclusion (serious, communicable things, like HIV infection or tuberculosis).
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High school drop out I think is the correct term - I was ill from age 14-18 and didn’t go to school for the last two years
I don’t have any skills per se, I can use a computer [have certs for spreadsheets and wordprocessing] and although I have no paper qualification I could probably teach people how to ride horses. I’ve harboured notions of being a screenwriter for years …
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Well, probably the employment-based visa categories are out; you generally need specific skills requiring higher educaiton, or unusual circumstances.
I’d guess your main barrier to coming here on the Visa Waiver would be that you have to convince the immigration inspector that you intend to go home at the end of your stay. Generally that means showing you have something to go home to: job, family, education, or whatever. Inspectors have a great deal of discretion to refuse entry to people they believe intend not to comply with the terms of entry, i.e. not working and going home at the end of the 90 days, rather than using entry as a tourist as a springboard to other endeavors.
Your age and employment situation, not to mention your economic situation, could work against you in this regard. Of course, given that your nationality isn’t a red flag, it’s entirely possible that nobody would ever question you about anything else; it’s very hit or miss.
Absolutely. “Permanent residence” is exactly that; there is no requirement ever to naturalize, and many permanent residents don’t. Naturalization has some benefits, such as the ability to vote and protection from deportation except in very unusual circumstances. But some other countries require people to give up their original citizenship when applying for U.S. citizenship, and not everyone is willing to do that. In some circumstances, there are tax consequences as well.
I’ll brainstorm a bit more about alternatives.