Not sure what you mean. There's no requirement to have any 3rd-party insurance, so your options are simple - you either have it or you don't have it. Some here seem to be of the opinion that it's too risky to venture out without being insured, which is their choice. My choice is that I don't feel the need.
Scroilling through the questions it looks like our little local post office was more informative than most when I went to buy vignettes for the bikes this year. The lady explained it had been discontinued & gave me an explanatory leaflet. http://www.velovignette-ade.ch/ The link here is for a site that explains the situation. Rationale is simply that the process is expensive & inefficient and the majority of people (90% according to the statistics) already have insurance through their household policies anyway. Insurers are starting to offer tailored policies for those wh are not covered.
Not taking out this sort of insurance is pretty low risk - but having it doesn't cost the earth either - but if you don't care you won't bother doing it will you?
TBH I know in my heart that I really should get insured for our Swiss residences' contents, which would probably include 3rd party liability as well, so while I wouldn't bother doing it on its own, a no-cost addition to a policy that I really, really, ought to get, is a no-brainer.
The vignette also covered you for theft of the bike, something which the right household policy would also do for little or no cost depending on the value of the bike. You do need to make a note of the bike's frame number of course, so you have something to trace and give to the police in the event of theft in place of the vignette number.
You definitely should get household cover - burglary, fire, flood are much higher probability risks than a third party claim whilst riding a bike.
No, really it didn't. My wife had one stolen in Basel last year, ironically an old ladies tourer worth three tenths of sweet FA. Of course she had a vignette and was informed in no uncertain terms that it would not cover her loss.
Well that's going to be up to him, I suppose, to ensure he has a travel policy that includes liability. But if you read the thread you'll see that it's not actually required, so you could let him make his own choices.
In the event that you do not have a personal Third Party Insurance in Switzerland, there is now an option to insure yourself when on your bike (a bit like the old velo vignette system).
It is called "Suisse Velo" and is run by a subsidiary of Nationale Suisse Insurance.
Their basic package CHF 9.90 per year has CHF 1'000'000 of personal liability insurance. They also offer a more expensive package with insurance on theft on bike etc.
Your personal liability insurance will cover anything that involves bike accidents caused by you.
Insurance against theft (of a bike) is typically included in household insurance for the case where the theft takes place at home. Theft outside of your own ("auswärtiger Diebstahl") is typically only insured when you explicitly choose to include it. This will result in an increased premium.
In Switzerland, personal liability and household insurance typically are sold as one package - see https://en.comparis.ch/hausrat-versi...g/default.aspx for starters, but be aware that this is only a subset of the market.