In a large section (9 basses) and professional orchestra face-to-face 25 hours or more a week things could sometimes become tricky. You or may not have friends but you try to be friendly towards your colleagues. You may like sharing a stand with some and not happy with others. Life in an orchestra could be likened to working in an adult kindergarten at times, the amount of pressure depending on factors such as the conductor, the repertoire, the soloist, the intensity of the rehearsals, time of day or night. Within the section you have individuals of different ages, histories and backgrounds whose common denominator is playing the bass. You had different abilities and perhaps small differences in intonation and timing, especially pizzicato. I have heard it described as a job with a thousand pinpricks. The surprising thing is that a section of three or greater becomes more forgiving of individual mistakes and develops a single body of bass sound and resonance so long as all play confidently. The worst scenario IMO is a weak player who loses confidence in their intonation and tries to play softer . This has a big effect on the section's output and confidence, with ears reaching for necks. The role of principal sits better on some people than others and the best player is not necessarily the best leader. The point is that if you are not the leader then try to be very good at following despite personality differences.
We did try rotating the tutti players with mixed success but it was quite plain to see that people had their preferred stand partners. When I first joined my orchestra you began as a young player in the last chair and progressed slowly up the ranks if players left. Later the new young principal formed a strong opinion about who he would invite up beside him when numbers were reduced because of repertoire and older players were often passed over. By the time I left aged 60 I missed my life in the orchestra a lot but had become tired of the internal machinations of the section. When asked by "outsiders" what playing in the orchestra was like I would say "on a good day you were in Heaven, on a bad day you were in Hell".
Don't let me put you off a career in an orchestra !!