The only kind of kayak that I have ever had so one of the sit-on-top ones, and it was much easier for me because I am a senior, and getting in and out of a regular kayak would have been impossible for me to do.
With the one that I had, I could just wade out into the water a little ways, straddle my legs across the kayak, and sit down on it and then put my feet inside. It was all very simple and easy for me to do.
That kayak was not as fast as a regular one is; so it probably would not be something that you would want if you were more experienced, and kayaking with a group of people.
I had a friend that I went kayaking with, and she was pretty much of a novice also, although she was more experienced than I was.
She originally had the sit-on-top kayak, and when I got one to go kayaking with her, the one that I got was one that you had to get down inside of , and she was experienced enough to be able to use that one; so we traded.
When I got married and moved away; I left my kayak with her; but I do miss the fun we had being out on the summer lakes and paddling along.