Would my great grandfather have worn a kilt in WW1???

[TenorClef]

Hiya, so yesterday I discovered this Scot was the same chap on my family tree. Hugh Frizzell my great grandfather. His MIC reveal the following-
Acting Corporal 2975 Hugh Frizzell, 1/5th (Renfrewshire) Battalion, Argyll and Sutherland Highlanders. Later A/Cpl 201101.
Then according to his MIC he went on to serve in these too:
A/Cpl 202781, 1/4th (Queen’s Edinburgh Rifles) Battalion, Royal Scots.
A/Cpl 421864, Renfrew (Fortress) Company, Royal Engineers.
A/Cpl WR/193564, Royal Engineers.

Question would he have worn a kilt?

Any ideas which one and any photos appreciated :-)