For wearing a bib at meal times
until they dont need one anymore

DS#2 hasnt worn one since he was about 2, but he is pretty darn careful to get every crumb into his gob and has bn since bn really little as he's a total foody. DS#1 wore one until 4yrs at least-probably longer for spilly food..was a shocking eater, spat and threw everything so needed a bib
For being strapped into the stroller in busy places such as the mall.
probably around 3.5-4yrs ish..dependant on the child, if they were a runaway..maybe longer hahaha. i used to take the double buggy to pick ds#1 up from school/kindy bcos his legs were tired he loved just sitting next to DS#2 and having a ride (lol which always cracks me up bcos as a 2yr old i sold his buggy bcos he would NEVER sit in it

), same for at the mall, I used to take the buggy and he'd sit in it sometimes and walk sometimes..prob until around 5.5yrs haha

contrary child. With #2 the last time i used the buggy was when we went to oz last year (he was nearly 3yrs) (i didnt take one with me thinking he'd be fine, 2nd day there i bought one lol..but havnt used it at all since we came so am about to sell it), basically he's not a runaway, he holds my hand, and he doesnt get tired legs so we dont really bother with it anymore.
For sitting in a highchair at home, For sitting in a highchair when out and about such as a cafe or food court
similar to the bib really, dependant on child and their eating/running away/up down from the table behaviour my DS#1 was in a highchair until 4 and a bit both at home and out..well not always when out as usually i cared less then, but pretty much always at home. shocking eater at the best of times..so i wasnt even going to start to deal with table issues until we got him eating okayish, while DS#2 was hardly using it at home or out come 22-24months old.