Manufacturers have been granted exemption from liability for any resulting harm. Ruud Dobber, a member of AstraZeneca’s senior executive team, said: “This is a unique situation where we as a company simply cannot take the risk if in … four years the vaccine is showing side effects.” (The government has taken on the liability and has an insurance scheme in place.)
https://www.thetimes.co.uk/article/why-not-giving-children-covid-vaccine-lw5kpn5m5