The Romans occupation of Scotland was a military occupation to stop attacks into England. No towns were built in Scotland.
Agricola Invasian 79 AD
There is a Roman book written in the year 98 that describes this invasion – The life of Cnaeus JuliusAgricola

The final battle after 8 years of Agricola fighting was at Mons Graupius where 30,000 Caledonians were commanded by Calgacus. He gave a rousing speach
“Our children and relations are by the appointment of nature the dearest of all things to us. These are torn away by levies to serve in foreign lands. Our wives and sisters, though they should escape the violation of hostile force, are polluted under names of friendship and hospitality. Our estates and possessions are consumed in tributes; our grain in contributions. Even our bodies are worn down amidst stripes and insults in clearing woods and draining marshes…..
Every incitement to victory is on our side. The Romans have no wives to animate them; no parents to upbraid their flight. Most of them have either no home, or a distant one……..”
March then to battle, and think of your ancestors and your posterity”
Soon after the final battle there was heavy fighting in Greece and the Roman legions withdrew from Scotland to be reassigned to fight on the Danube.