I don't see that it is LU's responsibility to get people home just
because pub opening hours are longer. If people must insist in drinking
until 2 am get a taxi or a night bus or move closer to the pub, or
choose a pub wihin walking distance. This problem will be nationwide

The problem won't be nationwide. Pubs currently shut at 11, the last
bus/train (if there is one) is well before then.