Why a nuclear-powered Da Vinci liner faced a port-access problem

Could an Italian nuclear-powered ocean liner such as Da Vinci have succeeded?

Probably not as a normal liner, because port restrictions and operating costs would undermine the international service that made it useful.

The discussion sees the Italian project as an effort to project national technological prestige. An ocean liner depends on broad access to major ports, while many harbour authorities would resist admitting a nuclear-powered vessel. Its operator would also bear unusually high crewing and maintenance costs for a single shipboard reactor programme. Wider adoption might eventually improve acceptance and economies of scale, but one Italian liner was unlikely to carry the initial commercial burden.