If I could see your hat, I’d be putting money in it. I love buskers.
If you are considering coming to the US, there is ample opportunity. Every major city I’ve been to has buskers and musicians on their streets. There are also things like The Renaissance Festivals, which is where a couple acquaintances worked, and they are now on America’s Got Talent and headed to Las Vegas.
Depending upon where you choose to live and how good you are will make a difference on whether you need to supplement your income or not. And you probably won’t be able to get into the country unless you have a work visa or significant other.
Keep claiming your pitch, wherever you take it!!