How to allow users to post ads

I'm building a sale site & need to allow users to post their own ads as well as the owner who doesn't know code update & continually add his own ads to his site.
Suggestions?
ty for your time

I believe wordpress has plugins and such to enable a user freindy image upload. It might be your safest bet.

I find with things like this, however, as long as you can explain it thoroughly and demonstrate via video or step by step process, people generally are able to figure it out.

Make yourself available in the beginning to offer support for troubleshooting.

Hope this helps