Am I expected to sit in the middle close to a guy on a first date if he has a huge pickup?

I sure that may seem like a stupid question to some, but this is a first for me. I had a date with a guy with a huge pickup up off the ground. He helped me into the truck. I sat there and he invited me to slide over to middle with that seat belt to sit next to him. I did that. Did I do the right thing? I have never dated a guy with a pickup (especially a huge one like this). Is this an expectation usually? I have seen a lot of women in the middle in these trucks and a few not.

Am I expected to sit in the middle close to a guy on a first date if he has a huge pickup?
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