Latvia has been a member state of the EU since 2004. This means that, as a Latvian citizen, you get all the benefits of an EU passport: live, work, do business, study, or retire in any EU country.
These advantages include Social Security that grants you excellent, free or subsidised healthcare in most countries of the EU.
Furthermore, children born to a person with Latvian citizenship will automatically get EU citizenship, as well as their children and their children. So this is an investment for generations.