It's important for potential new expats to know what they'll face when arriving in a new place, so perhaps a note about Kuta and some of the surrounding areas is in order.
Bali has a big reputation, but a dark side to go with it.
There is a drug dealer problem, especially around the ground zero monument. The dealers ask anyone they think might be a good mark if they want drugs. A polite refusal got rid of all but one who needed some stronger words. I got the most offers near Ground Zero, but others all around Kuta town and other areas in the Island's south.
Prostitution is an issue, but the nuisance is pretty much, at least in my experience, to disgusting men shouting "Lady Lady" at tourists. I didn't engage with any of them so I can't say if those pose any physical danger or not.
Non-Blue bird taxi drivers. I can't say 'all', but everyone I tried offered stupid prices that were nothing short of theft. Some hotels work with these people by not allowing Blue Bird onto their grounds then recommending a rip off company. If a hotel does that, walk out and book a Blue Bird using their playstore app. It's easy to use and you're going to get a safe journey with an honest driver.
One scam is guys handing out winning tickets. You always win, but you have to buy overpriced rubbish to get hold of your prize. They pester, but most took a polite refusal and left it alone. I got talking to a few, some were locals, but most of them were from Java.
Really pushy tour guides. That lot won't take no for an answer so walking away is the best idea. NEVER take them up on their offers as the ones I looked at were all sky high prices for nothing special.
Motorcycle hire. The companies I looked at were very reasonably priced, but there is a danger if you don't have a valid license. An accident, especially a serious one, can leave in in deep trouble. Also, if you're unlicensed, your health insurance company may not pay out.
If you hire one and have a valid license, be sure to take the insurance package. It's cheap and saves you a lot of headaches if the bike is stolen.
Drunks on motorbikes. These are exceptionally dangerous but there are significant numbers of foreign tourists engaged in beer/bike suicide attempts. The same goes for inexperienced foreign riders on the island, even sober ones. Their lack of training and knowledge of how Indonesian roads work make them a serious problem.
Crowds of tourists can get a little tiresome after a while, but long term visitors in that area will have to get used to them
Rip off prices in shops and markets. You're fine in the bigger chains such as Indomaret and Alfamart, but a lot of shops will try their best to massively overcharge tourists. I bought a few T shirts and so on, all with a starting price of around 300,000, but I never paid more than 50. Negotiate every time. A short holiday is not going to be much of a bother, but long term expats will have to get used to it.
Money changer scams. These try to confuse you into parting with a lot of money with a promise of a very good exchange rate, but look at the final deal BEFORE you get any money out. The best way to spot them is the exchange rate is way too good, but any can be a problem so watch out.