For lightbox functionality, you'd indeed need an external plugin (or just combine modal + responsive image), but i see the fact that such plugins are even available as a plus, since that means being able to download one and start using it, without spending days or weeks developing low level functionality.
I think that the difference here is that you seem to prefer to focus on the design part a lot more (which is valid in projects where the brand is front and center), whereas i care more about implementing functionality quickly and prioritize that. For the latter case, Bootstrap works nicely. Probably less so for the former.
Bootstrap does provide most of those:
For lightbox functionality, you'd indeed need an external plugin (or just combine modal + responsive image), but i see the fact that such plugins are even available as a plus, since that means being able to download one and start using it, without spending days or weeks developing low level functionality.I think that the difference here is that you seem to prefer to focus on the design part a lot more (which is valid in projects where the brand is front and center), whereas i care more about implementing functionality quickly and prioritize that. For the latter case, Bootstrap works nicely. Probably less so for the former.