How safe is Nepal?
We are incredibly peaceful and this makes Nepal very safe. Crime exists of course but is very few and far between. However like in most countries it is on the rise, but ever so slowly.
Advice: in cities, just use common sense and do not do stuff you would not do elsewhere - walk very late at night in alleys, flash a lot of money, attract undue attention to yourself etc.
In rural areas or in the trek, you will sleep far before you get into trouble anyways.
Word of caution: in some trails, there have been sporadic incidents of robbery. Keep your eye open for these news and ask locals.