Necesse est + dat

[pmda]

I'm doing a review of Book 1 of LLPSI.

In Cap X Orberg has 'Spirare necesse est homini', This is explained in the margin as 'necesse est + dat'.

In Cap XI he has 'necesse est' as a construction 'accusativus cum infinitivo' and his example is: 'Puerum dormire necesse est'.

Presumably it would also be OK to write 'Puero dormire necesse est'.

[Sceptra Tenens]

Yeah, that would work. L&S seems to imply that the dative must refer to a person, and that it is more emphatic than the AcI structure.