This question is distinct from other questions which ask how and when to begin Shabbat, etc. when there is no sunset. I am asking about places in which sunset occurs very late during certain times of the year. For example, in certain very northerly places, sunset occurs as late as almost 2 a.m. during certain periods. In this case, even Plag ha-Mincha is not until 11:30 p.m. Are there any dispensations for celebrating earlier in these times/places, or at least eating earlier? What about in families with young children?