I'll stay in my country but maybe I will move to other city because I have a dream to live in other city in my country.
Moving to other country is good but maybe for a short of vacation only and it will force me to spend a lot of money to stay in other country for too long time.
If I have to go to other country, maybe I'll visit Singapore or Macau only because I want to feel the experience of gambling in a land based casino

Staying in our country is the best choice IMO and maybe we should use the money to build a business so we will not just use the winning for consumtive things only.
Once my business is running well and I can make much more money with it, then I can think about moving to other country

it is understandable that a lot answered to stay in their country as they are in their comfort zone. besides, your immediate family is there and hard to relocate your entire family in another country.
maybe, move to another town which is more appealing for retirement. but of course, visiting another country may be in the bucket list of my family.