I'm not sure how tall a man is is the issue, surely it's his/ their total weight and width. I never see people stuggling in taxis due to height but my gosh I see some fat people rolling around in the back as they try to stand up.

Is this likely to be an issue?

He is not fat. But he is a <i>very</i> large man. That's why I was asking. But it sounds OK. Taxis aren't as small as other cars apparently.

And, like I said above, I think they just don't understand how close bus stops are at any time. I think they will be happy with the bus once we get there.