Bootstrap 5 framework and LiteCart

I do not know the history of the engine and the way of growing up, but I wanted to ask why at a certain stage of life did not choose bootstrap 5??

I played a little and it seemed to me it looks much better and adaptive.

Yes, I have the same question, 2-3 years Litecart should have update :).

LiteCart uses it's own CSS to keep it's footprint as small as possible.  You could always import Bootstrap yourself and call it where you need it.