Also question is, is it disrespectful to wear a kilt?
In the true sense of the meaning yes, but as long as it isn't worn as a joke or to make fun of Scottish culture, it's more cultural appreciation than cultural appropriation. Anyone can wear a kilt if they choose to, there are no rules. The only thing you should be aware of is that there is a correct way to wear a kilt.
Subsequently, question is, is it still illegal to wear a kilt in Scotland? The Dress Act 1746 was part of the Act of Proscription which came into force on 1 August 1746 and made wearing "the Highland Dress" — including the kilt — illegal in Scotland as well as reiterating the Disarming Act.
Thereof, what is the purpose of a kilt?
When the armies of the past were fighting in Scotland, the kilt with its pleat helped protect the soldier much like armor would. When the nights became cold, this garment was easily removed and spread out to create a blanket to keep the person who owned it warm.
Is calling a kilt a skirt offensive?
While it is not offensive for anyone to wear a kilt any more than it's offensive to wear pants, one thing to be aware is that in Scotland the tartan -- the plaid pattern in the fabric -- can play a role in heraldry. Historically tartans were used to identify the clan affiliation of the person wearing it.
