It is interesting that there are quite a number of members that for one reason or another are involved in Solo Kayaking. I am not very experienced but "All" my kayaking so far has been solo. I was reading in another website an article by Simon Willis in which he says that one of the requirements of kayaking is, "to have someone as daft as you to paddle with, since only a kamikaze novice kayaker takes to the sea alone." (http://www.ukseakayakguidebook.co.uk/kayak_new_mt/art_kayak_new%20moutaineering.htm)
This is not a view that I hold myself mainly because it would be, I believe, impossible to find someone quite as mad as me! I wonder if he went climbing alone? I am 65 years old now and have found that being alone in any circumstance heightens the senses and that includes the sense of fear which is a great survival tool. When you are alone you have the freedom to go and do as you please and that is one of the main reasons why I venture
to the sea or hills.
To have a companion can be nice but they can also, and surprising often are, a hazard which at best will interfere with your aspirations and at worst endanger your life. My only advice is to take careful note of weather and tides. Rely on your instincts.