Reading through this thread has made for some interesting reading. When this thread first started my initial thought was 'Why do you care what others think? Do what is best for you and your family.'
I am extremely fortunate to have the choice of working or not. I tried PT hours and I never worked 20% less hours although my pay was certainly that much lower. I have a career with long hours. Average hours are 8-7pm during the year and during crunch times its 8-11/12. It is a very long day and DH has to step it up a lot during crunch times.
I have done those hours for a reason and I am now looking to leave into a senior position elsewhere with shorter hours and a pay increase. I have paid my dues and I have Partners at work looking to put me in with clients where I can leave at 5pm, meaning I get home around 6pm.
Very very few parents are fortunate to have the financial backing I have to enable me to do this. We live in a home right outside NYC with fantastic transportation links that is $$$, we have money for good childcare, buying in outside help including someone to cook (when dH is away as its his hobby), clean, do our laundry and I someone to collect Amazon parcels when I cant send them to DH's office.
DH travels a lot but its day trips. Again we are fortunate to be in the US, living very close to two major hubs for domestic flights and international hubs for when he has to fly to Europe. Trips to Europe are tough as he must leave on a Saturday for a Monday morning meeting and returns the following Saturday late afternoon when meetings run through Friday. I can fully understand why the parent left at home to manage family life doesn't work. I do it and it's tough being a single parent working long hours, 3000 miles from family, even if you have the resources to do it.