My partner's grandmother is 84. She lives on her own and is fairly independent. She walks slowly with a stick and whilst she can climb stairs if she has to, she has some difficulty so prefers not to. She visits regularly and gets on well with our boys of 3 and 5 and they respond well to her. We sometimes like to go out for a meal in the evening and can be out of the house for around two and a half hours. We cancelled a dinner recently because our regular babysitter let us down at the last minute. What is people's view on the maximum age that a babysitter can be without it being considered negligent? We did have her sit-in with the boys for a short period recently when our neighbours were available and so she could call them if she needed assistance. Would it be acceptable to let her babysit at this age? or if uncertain, would it be acceptable if, as was previously the case, she had a phone handy to call the next-door neighbours who had offered to pop round should she needed some assistance for whatever reason.