So, here in the UK most towns have several 'twin towns' in other countries. These appear to be largely ceremonial, each town will have signs mentioning the other and there may occasionally be statues, benches etc. exchanged between the twins.
There's a running joke that councilors like to twin towns because they get to travel to potential twin towns and essentially have a free holiday courtesy of their position on the council.
Is there any significant benefit to the town itself, or the community who live there, to a town having twins?