I have always bought a side entry tent, I find that for me, being older and nowadays being less supple I believe it to be easier to get in and out of than a front entry tent. I've tried a front entry tent and crawling in with my head at the far end and my feet at the entrance end meant that as I tried to get out I had to make two or three bottom shuffles, then stand up, then when I need to take my stuff out of the tent I then had to spend time my time, getting down on my knees, moving forwards, moving backwards, the hands and knees position, in short not my idea of fun and for a comfort point of view, for me, difficult. I do appreciate that I may have organised myself wrongly, should I have gone into the tent feet first, rolled over onto my face in the morning and crawled out on my hands and knees?
I'm lucky, my side entry tent is easy to get in and out of most time, but it all depends on the door shape as well, some are not so easy, for example, my Zephros One is not as easy to get in and out of. I have a well-practised routine to get out, I unzip my door, I sit upright and then swivel my legs through the door, I unzip my outer tent (my zip can stick if I pull too fast and too hard) I then put my socks and boots on, lean on my left elbow, bump my bottom out over the door 'lip' and stand up. Then adjust my clothing. I always try to be discrete as I dress, tuck my top in, tighten my belt, make sure I remember my fly, etc.