@pixie5121 nobody has claimed men purposely seeking out single mothers isn't a flag that needs to be checked out. In fact I think just about every single mother knows it is - if I matched with a man who said he actively seeks out SMs the first thing that would come to mind is cocklodger followed by more nefarious considerations. Not always of course - maybe he's a single father himself, maybe he can't have children of his own (I've dated a man who ideally wanted to end up with a SM for that exact reason), or maybe he works off shore / abroad and has found through experience that it's less of an issue for SMs because for the first couple of years building a relationship it can be a case of only seeing each other at weekends / they are in less of a rush to move in together / a multitude of other valid reasons.
As for: No spontaneous late drinks, no staying over, no last-minute trip to Paris for a couple of nights?
I have done every single one of these things as a single mother with people I've dated in the past. Not everyone is as lucky but their Dad had them set days every week and because I had them so young, they still had 8 grandparents young enough and willing enough to take them overnight, not to mention aunties and uncles with kids the same age. Now they're older that's not even an issue anymore - I'm off out for a coffee tonight with a date who asked me just last night. No "huge restrictions on lifestyle" here. You seem to have a very black and white view of what single motherhood entails and assume it's all a massive burden when actually I've found it's the best of both worlds.
You are also assuming that every man is purely seeking a partner to do these things with. Personally I'd rather a boyfriend had his friends for spontaneous late night drinks and me for Thursday night 'few drinks in the house over a game of cards' type thing. I don't need a drinking buddy and a man actively seeking me to provide that would be a red flag. I don't want to be your mate or your fwb, I want to be your future wife 😂 I want to be the person you can sit in with on a Tuesday night and have a better night than you'd have alone.
As for weekends away, it's never once been an issue. I've been to paris, rome, barcelona, belfast, london, highland cabins etc with boyfriends all while making sure my kids had at least 2 or 3 holidays abroad each year. I would never date a man who wanted to "travel" and again, I see this as the red flag of a man who isn't looking to settle down.
Life choices come with consequences. Having a child restricts your options.
Nobody is saying they don't. But as Tandora has said, humans are far too complicated for the very narrow views you're doubling down on.
Almost every woman OLD will have made life choices or have attributes that restrict their dating options. I'm well aware having children young has restricted mine, but likely no more than if I hadn't had them and was now faced with trying to meet someone who wanted to settle down with me in the next year or two because I'm racing against my bodyclock at the exact time "the good men" have mostly been scooped up or aren't yet ready to settle down.
In some ways I think that makes it easier for me, but that is a very personal thing. You clearly believe my way would have made it harder for yourself - and that is perfectly valid - but you have absolutely no right to tell other people what your life choices have done for your "stock value".
As evidenced by the way you reacted when I tried to do that to you (which proved my point nicely).