I'm sure Lancashire does have it's own unique cultural aspects, (don't they have a banter-feud with Yorkshire? Or is that just one Yorkshireman I know?
) But trying to deny that Scotland doesn't have a distinct national culture is quite laughable, ever since the Romans ground to a halt there has been that division in Britain. Of course with the union of Great Britain, Scotland, along with England, Wales and Ireland poured their cultures into the "British culture" pot and the national divide is much less strong than in say 1500. It's less of a divide than France/Spain but far stronger than Lancashire/Yorkshire...
The education is completely different, the laws are different, the money's different, the traditional heritage is different, the language is different: Standard English accent, remaining Lallans influence not to mention Gaidhlig. Different flag and often sports teams. What more makes a nation? The UK is a country of countries and a nation of nations. The differences make the country richer I always thought but even more recently I think people are getting really bitter at each other - Scots acting like they are being oppressed because of their smaller vote and English acting like Scotland is a weight dragging them down or a moaning wife.
I haven't decided yet which way I'll vote, leaning on voting to keep the union as confidence in the SNP leadership seems to be dropping; while Scotland could do fine or better alone, poor leadership would ruin us.
Anyway, my point is that, if it's your objective to encourage unionism, don't belittle Scottish culture, it turns people away.