Hello! My friend and their partner are struggling with an issue which I’m sure is as old as time (or as old as the invention of car seats, buggies and highchairs). V boisterous seven month old, HATES all of the above. Goes rigid, fists clenched, howls and howls. I can see that little one just wants to be free. Same issues with nappy changing apparently. Car is a particular problem. Friend has tried toys only for play in car etc but to no avail. Any tips please? Thank you!