Yes, lots of old superstructure was made of wicker/wood/whatever was to hand. There will be a metal frame under it, of course, but wicker is perfectly strong enough (ever been in a hot air balloon? The baskets are usually wicker, and strong enough to hold 8 people of more).
Here's another pic of wicker usage on an old bicycle/motorbike:-
Very amusingly, it's possible to check the numberplate of that bike on the UK gov. website vehicle MOT page [0]. That bike was registered 31st December 1913 - so it's a mere 108 years old now.
Here's another pic of wicker usage on an old bicycle/motorbike:-
http://hazeii.net/images/2004/pioneer/p16.jpg
Very amusingly, it's possible to check the numberplate of that bike on the UK gov. website vehicle MOT page [0]. That bike was registered 31st December 1913 - so it's a mere 108 years old now.
[0] https://www.check-mot.service.gov.uk/