While Raw files are bigger because they contain a great amount of data image, JPEG images are likely compressed down into a smaller file which will be easier to share.
I would shoot both if i can because Raw holds a lot of detail but take less photos, but JPEG you could take many shoots if you want but if the customer want’s higher quality I could give them that.
Yes and no because it will show bad effect because it will affect the quality and your converting to a lossy formant. Also Raw files contain high amount of detail then JPEG. Converting a file to JPEG means compressing the detail into smaller file size which will be less space to storage space data images.