However if I was to say I'd like 10 kids - would I be judged ?
So long as you can afford to look after them all, in terms of both money and time, then it is up to you. That is the same for anyone, no matter if they are planning 1, 2, 5 or 10 children. It's something lots of people don't do and more of us ought to as part of our family planning.
Yes there are some environmental issues to consider with large families but your average person doesn't usually factor that in anyway, whether 1, 2, 10 or no children.
You do need to consider how you will manage it though.
Financially can you provide for 10 children, without needing to rely in state benefits? Can you afford to cloth and feed 10 children, provide them with everything they need, pay for their school trips, etc?
Time wise, can you give 10 children enough of your time and energy to ensure they all feel values, loved and cared for fully? Do you have time to help all of them with homework or hobbies? Can you afford to have transport to take them all out and about? All things to consider and more.
Can you ensure you won't be expecting the eldest children to help care for the younger ones? Older children shouldn't be used as childcare and still need to be allowed to grow up without the burden of needing to be home to help care for toddlers and babies, etc.
Will you have a willing support network to help out? Do you have family on both sides who you can rely in to help out if children are ill or need taking somewhere?