Financially providing for your children is the most important job there is. There’s absolutely no shame in it
This! Ultimately, we just don't know the future.
When I had children with my ex, I was t to know that we would separate oy a few years later. Before we had kids, we earned the same income. We could have decided that I'd become a SAHM for a few years or maybe more. He could have seen his income significantly increase so that we could easily afford it and the kids would have not gone without anything whilst having mum at home to meet all their needs and all live happy ever after. Going back FT would have been a pity for the kids.
Or as it happened, we separated, he lost his job, I got no maintenance, and if it wasn't for me working FT all that time, getting promoted before the separation, I wouldn't have been able to buy him out and keep the house.
I wouldn't have been able to send them to fun activities, take them abroad and do many things to wider their knowledge of the world.
Ultimately, I would say I was a good mum, but nursery gave them another side of learning and fun I wasn't very good at providing. It was very complementary and they benefitted from it.
There is no right or wrong as a principe but it certainly turned out to be the best decision for me and my kids as life evolved.