I think what is technically legal is quite relevant.
Making things illegal is not the only tool for getting people to adopt behaviors. Often it is counterproductive.
A key point about Sweden is it appears they had a lot of people behaving responsibly despite not using the force of law.
Contrast that with the UK which had strongly enforced legal lockdowns, but notably poor results.
If you don’t think we should consider whether the mechanisms we are using to get people to behave responsibly are effective, then you don’t have to participate in such considerations.