Many parents shed a tear when their little ones leave primary school but an emerging trend to see them off with a “graduation prom” has left many with eyewatering bills for sharp suits and elegant ball gowns.

The Americanisation of Scottish childhood, driven by social media sites such as TikTok, has transformed humble primary school discos into glamorous events demanding expensive formal wear.

Parents face a constant treadmill of formal occasions. Some spend £500 on communion dresses for seven-year-olds, and as much as £300 for “junior prom” dresses at the end of P7.

Some high schools have two formal dances a year, a “snow ball” for Christmas leavers and a final school prom in the summer.

Kitted Out, a community initiative that lends free formal…