When people are speaking or writing informally, they often add an extra piece of information using one of the conjunctions 'and', 'but', 'yet', 'or', and 'nor' to begin a new sentence.
We stayed fifteen miles from Bonar Bridge. Andwe went up the coast too.
I think it's motor cycling. ButI'm not sure.
It's not improving their character. Northeir home life.