I haven't read the whole thread but someone very far upthread was talking about not being able to afford music/sport/enriching lessons and clubs for their children. And it made me recall a conversation I had with someone about children's events and in particular free events.
Lots of museums, councils, libraries, children's centres and other places run free events. Most recently I took my kids to see Dippy On Tour, we also went into the art gallery and museum. It was a free event, anyone can go (though we booked I don't think you always need to) so you'd expect it to be full of all walks of life. But they aren't, the free events often aren't accessed by the poorest families as they don't feel they are for them, or they are concerned there will be peripheral costs or the cost of travel is prohibitive.
The same goes for quite a large number of local free events and I think it is quite misunderstood. The person I was talking to was saying they had listings for a high number of free events and they were very popular and so it followed that it was very popular with lower income families. While that may be true with some of the children's centres events, I find that most of the library and museum free events I attend are full of middle-class parents and not the poorer parents.
I have found that some of the poorest families don't do anything with their baby and toddlers, they might take them to family members for a cuppa or to other friends or the shopping centre but rarely to a child-specific event.
You really do not need money to enrich your children's life, but you do need the knowledge that events are there and the confidence to attend. I think many parents feel they wouldn't fit in or it isn't the norm among their peers.
Having some money and education means I have less fear about seeming weird or doing things differently. I couldn't care less about what other people do or how things look, we just do things.
I grew up very poor, but that was through family breakdown and a lack of available childcare to allow my mother to earn more. After-school care did not exist, she had to work school hours so she cleaned and did factory work but had a background in finance.
I didn't go on holiday abroad between the age of 4 and 18. I was able to learn the violin due to family members paying for it. The only club I did was brownies as it was cheap. But, my mother and more so my father both came from relatively affluent families. They had a social ease in situations that allowed me to gain valuable experiences. There was always an expectation that I would get an after-school job at 16 and I would go to university, even though my parents didn't.
We try and enrich our children's lives through variety, travel, language, experience and most of those are inexpensive, but only if you have the luxury of time and capacity to research and do them.