SuldaanGuled
Rag waa shaah dumarna waa sheeko.
Well in an ideal world there would be no capitalism but there is, and if you want to ensure your kids the best chance of success you need to provide for your kids. If you have too many you're spreading yourself too thin. That's just the way it is. My parents had a lot of kids and have good incomes but there's no way I'd want more than 2 kids because mentally it's also a drain.
I'll be content with whatever Allah blesses me with , be it 1 or 10 ciyaal kuligood waa mashallah. Success isn't limited to attaining a better worldly life if anything it's about worshipping and pleasing Allah according to your ability from that which Allah blessed you with in every circumstance. For some being wealthy and attaining worldly success is the best means of gaining nearness to Allah for others being poor and attaining less in terms of worldly gains is the best means of gaining nearness to Allah. It might be that we don't perceive someone as being successful but in reality it might turn out to be different.
We might strive for something that might not be of benefit to us in the end so it's best to keep our intentions pure.