In practice, these countries implement already a lot of EU law. It isn't that difficult for say a Switzerland to join the EU and they have good reasons to, as access to programs like Horizon is a huge benefit. The economies of these countries are quite interwoven with the second largest economy of the world. The EU market comes with rules but is is a very big win for neighboring countries. In fact, Switzerland backtracking on previous accession tracks and thus not qualifying anymore for Horizon etc is causing some serious regrets, so I won't be surprised if Switzerland bites the bullet somewhere in the future.
Secondly, the world got a lot more unstable since the US is pushing for a lawless might-makes-right world and taking an increasingly predatory posture there. From that perspective, the EU is becoming even more relevant. Poignant example is Canada taking more and more steps to integrate their economy with the EU, as well as to become part of its security architecture.
UPDATE: Leaving the Horizon program has apparently been too painful [1], seems the Swiss were retroactively allowed back from 2025 [2]. I don't know about Horizon 2028 though.
Switzerland is currently in the process of implementing a third wave of bilateral agreements with the EU, and the federal government has indicated that in their opinion the "bilateral way" is the best of both worlds in terms of sovereignty and integration, so I don't think joining the EU will be on the agenda anytime soon
Yes, but the average Swiss voter is very proud of its direct democracy, and scared that joining the EU would significantly weaken it.
Therefore, having to follow EU law in some very specific areas, while remaining independent in others is a decent path, and a compromise very typical of Swiss policy
Far from it, EU law would need to be transposed in some very specific areas covered by the agreement, and mechanisms are in place to limit what retorsions can be put in place if Switzerland refuses such transposition.
Switzerland has been kicked out of Horizon programs so many times and had to build alternatives. By now everyone involved knows, Horizon is high risk program and access can be pulled at any time for political reasons, so it hasn't that much appeal anymore.
Because Swiss scientists and businesses want to collaborate and trade with European partner networks of science and industries.
One of the EU main principles is collaboration and win-win. It is not zero sum. Example: The Netherlands is wealthy and a net contributor, but would be poorer off from not being in the EU.
Also, be aware that your question easily leads to a follow-up question:
"Why don't we fund our own research and innovation?"
=> "Why do we fund research and innovation?"
Secondly, the world got a lot more unstable since the US is pushing for a lawless might-makes-right world and taking an increasingly predatory posture there. From that perspective, the EU is becoming even more relevant. Poignant example is Canada taking more and more steps to integrate their economy with the EU, as well as to become part of its security architecture.
UPDATE: Leaving the Horizon program has apparently been too painful [1], seems the Swiss were retroactively allowed back from 2025 [2]. I don't know about Horizon 2028 though.
1. https://sifted.eu/articles/switzerland-startup-talent-brain-...
2. https://research-and-innovation.ec.europa.eu/strategy/strate...