Hi there, I have been going abroad as a single parent with my son since the age of 5, at 1st I was dubious, but now, I wouldn't have had it any other way, (he is now 18) this was our time, to get away from normal every day life at home, and were we could both have fun and relax and unwind. My son has had no problems and always mated up with kids his own age, and you get talking to other parents, I always chose, hotels with kids clubs, and made sure he went, (luckily he loved going to kids club ) so I also had time out for a couple of hours a day. With you going AI I am sure there will be a lot of activities for you both :-)
The 1st few days you will most proberly be very self conscious, and may feel out of place, but every time we have gone away, there has "always " been other single paretns also on holiday.
I am certain you and your Son will be fine :-)
Roo