Yes it is almost normal here in Canada, ALL my time on the ST is single pilot and 98% of that time was done on the left seat doing vertical reference work. Got to get use to it though, pretty wide cockpit. The 2% left, was for a ferry flight here and there to get on the job, like it better on the right seat anyway.
I am probably one of the rare pilot with an B214ST endorsement on his license that specifies "BHST Single Pilot left seat"
JD