i think it all boils down to the person you're with before you can compare the merits and cons of being single or attached.
if the person gives you space and respect, you've got the best of both worlds.
generally im of the mindset that being taken is way better. no more dating, uncertainties, etc. you have this best friend for you to turn to for everything.
but to me one thing better about being single is the ability to go do what you want without having to consider someone else's feelings. like running off for some 2 week adventure holiday. it sometimes seems like if you're attached, you're suddenly deemed unable to take care of yourself anymore, even if you were perfectly able before.
my bf is of the opinion that im too precious and wont be able to take dirt or manual labour. like i shouldnt dirty my hands pumping petrol in case i touch my face. or even that i shouldnt do weights. i do love having someone take care of me and do convert into dependency mode but i'm not thattttt fragile.