Our 9mo is very active (started crawling at 6mo, nearly walking but not quite) and has just started bringing her legs up beneath her in highchairs then pulling forward - if we didn't stop her it looks like she'd drag herself out.
Our highchair is an old hand-me-down (my old highchair from 30 years ago in fact) so it doesn't have any straps but my mum says she never had this problem with me! It happened today in a cafe too, different style of chair but still no straps.
Help?! What can we do?