You`ve just got to go with the kind of person the deceased and their friends were. My parents were never drinkers and neither were their friends so their funerals were sedate affairs with the WI providing the food in the local village hall (in my Dad`s case) and some champagne and sandwiches back at my Mum`s house (in her case). The wake is about the person that had died, not the attendees.
Most Cornish wakes that I have been to have been pretty dry. Just sandwiches, tea and cakes. That`s the case with the locals anyway. I can`t speak for outsiders though