Garçons

A kilt, a plain white shirt, a small sporran, kilt hose with flashes and plain black shoes. A waistcoat or a small jacket for a wedding. Skip the kilt pin for young children, since a sharp pin at that height is worth avoiding entirely.

Measurements, always. Age sizing is an average and children of the same age vary by several inches, so an age based order is a guess. Waist, hip and length from waist to mid kneecap take two minutes with a tape and someone to hold it.

Possibly, if the wedding is a year away, which is why timing the order matters more than any allowance built in. Kilts have room at the waist fastening to be let out, but length cannot be added. Order closer to the date rather than early.

Yes, and at a family occasion matching photographs far better than variety does. If the family sett is very bright, some parents choose a quieter district or universal tartan for children. What looks unplanned is several different clan tartans across one family group.

From around three or four upward, provided it is properly proportioned with lighter yardage and shallower pleating. A full weight adult style kilt scaled down is heavy and restrictive. See childrens kilts for how these are cut differently.

Whatever he is comfortable in, and for a child at a wedding or a games day, shorts underneath are simply practical. The regimental idea is folklore and has never applied to children in any case.