The author (right) took her adult son on vacation.Courtesy of Allison TibaldiI rarely get to connect with my 30-year-old son, so I invited him on a trip with me.We planned the trip together and decided to travel to Hawaii.While there, we were able to have deeper conversations while still maintaining boundaries.I live in New York City. My 30-year-old son, Alec, lives across the country in Southern California. When I visit, I respect that he has h…