yanbu, I'm on mat leave at the mo and don't feel like this so much as on the 3 days when dd(3) is at nusery and I'm alone with ds(8weeks) he has his naps and I can pop out for coffee/me time once a day, it's great!
However when I was working it was a different story, worked 4 days a week which essentially meant doing 5 days work in 4 for 80% of the pay in a highly stressful job (CAMHS) on my day "off" i was with dd just the 2 of us and weekends spent doing child centred activities, thought I would go mad!!
I too don't remember my mum entertaining us the whole time, I happily entertained myself as was expected but know my parents were still there for me. I've had to train dd to do this and it's been hard work but worth it as she naturally wants our company all the time but this modern parenting notion of playing with our children constantly is setting us and them up to fail. Children need to be able to occupy themselves, everyone in the family has needs it shouldn't all be totally focussed on the children.
Now at the weekend we do 1 "out" acitivity with dd such as park/cafe/friends house/event/swimming/dance class etc. Then I do 2 hours a day play/activity with her in addition e.g. painting/baking/planting/play doh. The rest of the time she's expected to play by herself e.g. mainly make believe with her dolls. I will sometimes gear her towards something such as colouring/plasticine if she's struggling and beginning to whinge but I rarely play shop keeper/babies etc. with her. that's what she has toys for. I mentally just cannot do it, it's too boring. She also has 1 hour of tv a day.
playing with children constantly inhibits their creative development and affects their ability to use their own imaginations, they also need their own "me" time away from adult intrusion/direction.
I have a friend who from day one had played with her dcs constanrly in a really contrived over-enthusiastic way. I think she thinks it makes her a good mother. When she's here she won't leave them to play together we have to do stuff with them, arghhh drives me nuts! just leave them to do their own thing!
Sorry to rant but it's something I really feel strongly about. Just ignore those "why did you bother having children then" posts. Some of us have a life/identity outside of our children. Every mum working or otherwise needs some time to themselves at the weekend.