Well if my father was a rich farmer I'd not become a tailor, but if you were not the eldest son, might not be enough work to enable him to stay on. I know the Navy had people who could sew onboard, for sails etc, but not sure you would call the tailors. Maybe the enumerator missheard the occupation.
my G-granfather was a tailor in Spondon Derbyshire, and Beeston Nottinghamshire, but learned his trade in Leeds.
Saying lodger at the workhouse makes it sound more like an old version of the YMCA than a workhouse as I know them as well.
The actual form says it is a Lodging House as well, so I'll go with that. However there are about four other Tailors there, but no other Sailors, so could be a slip of the pen, but might be something we will never know for sure.
Skewy.