What's the noun for chaperoning? Here's the word you're looking for.
chaperone
An older person who accompanies other younger people to ensure the propriety of their behaviour, often an older woman accompanying a young woman.
(biochemistry) A protein that assists the non-covalent folding/unfolding and the assembly/disassembly of other macromolecular structures, but does not occur in these structures when the latter are performing their normal biological functions.
“Formal rituals of courting, chaperonage, and arranged marriages strictly governed relations between the sexes.”
“Even the straightforward parodies of classic Hindi musical numbers, in which love usually dances with the chaperonage of a chorus line, lack the comic spark to send them soaring.”
“My sincere condolences to his parents, whom I never met, but who loved their brilliant, magnificently weird son and made sure he always had chaperonage when he went abroad on his adventures.”