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Large glazed surfaces in buildings are beautiful, but at the same time also dangerous if an accident occurs.
Section 8:35 of Boverket's Building Regulations , BBR contains rules on the safety of glass in buildings.
The rules state that unprotected glazed surfaces should be designed so that the risk of personal injuries is minor.
Large glazed surfaces in doors should be clearly marked.
For old buildings the rules which existed when the buildings were built or changed latest apply.
If you want to improve the safety of old buildings, you can contact a glazier and ask for a cost estimate for replacement to toughened or laminated safety glass.