Shouldn't the blockchain be the best approach to handle public goverment data? I mean, project requirements to build infrastructures, for the private sector co

Shouldn't the blockchain be the best approach to handle public goverment data? I mean, project requirements to build infrastructures, for the private sector companies to bid. The results of those adjudications. Civil servants payroll and bonuses... That would mean no suspicios document shredding when a new party enters the goverment. An open standard way for everybody to access the data. Even different applications on top of those databases. Setting aside political considerations, what would be the drawbacks of this approach?