Going back into the mists of time, First Kernow was asked to time Redruth station arrivals with certain train arrivals, or to delay departure if possible.
Drivers were never told this on their duty boards, so there were no connections made.
Coming forward there were muttings from the Council for connecting bus services to wait for each other, but they rarely did (traffic delays, driver shortage, vehicle breakdowns).
An admirable aspiration, but where running in Cornish summer traffic on rural roads is involved, the timings all go to pot.
The Redruth example was the “Helston branch line” connection. The railway was selling through tickets so the railway was contractually required to ensure the service was available to those passengers.
Similar tickets were available via st Austell for mevagissey and Bodmin for padstow