I can't speak to what Europeans have, but as a Canadian I can. It's not all it's cracked up to be. In BC MSP (Medical Services Plan) is $54/Month for an individual and it's mandatory whether you're employed or not. The amount is probably different in other provinces as medical is a provincial concern (and indeed, coverage varies from province to province). Employers usually offer extended medical, covering things like dental, eyewear, prescriptions etc. This all goes away when you're let go.
We have employment insurance, which is also mandatory (mostly) to pay into, but it only pays about 1700/month and payments only last 15 weeks (after a 3 week waiting period). Yes, it's nice to have some money coming in, but it's nowhere near enough for more than a month or two.
And lastly Welfare only pays about $650/Month not even enough for rent anywhere Metro Vancouver or the Fraser Valley.