Maybe? Have you tried just removing the table bit of the old high chair and pushing up to the table? Touch wood, our LO at 17 months hasn't started making too much fuss yet but I know this is the kind of age where booster seats can come in but unless he's fully strapped in, it seems crazy scary just to put him on a seat with a booster strap but then my LO is still very wobbly, he's only been walking for a few weeks.