100%
The agro i see the most in amongst our own support is when people are in the wrong seats and you cant fit in the rows. So awkward for small groups and couples, parent/child etc to try and shift larger groups out of the way, or end up as i have experience my son and I sharing the space of one seat. When a bus load arrives late it's chaos if people are in their seats. Completely selfish and uneccessary.
Go to your own seat, it's no difficult.