Odd question with little to no relevance to yourself without particulars stated
Frankly your wanting to know what other people do as far as personal funds go, it's odd and has no bearing on yourself.
To prevent the millennials from doing their typical misconstruing clearly stated facts into their taking everything as some form of attack or being told what they can or can't do, let's make this grade school simple for their sake.
You really (to get an accurate generalization or norm) need to put out your particulars to draw examples from those similar to yourself.
Without them, you can't draw any conclusions as to what's average for those like you.
Example - if you're one of those millennial kids and think having a hundred dollars cash in your wallet is a lot of money, we couldn't be any further apart. Anything I'd see as reasonable, you'd view as crazy.
Also, maybe you're new to poker (5 years or less) and just play a little here and there. Maybe some home game poker for change with friends your age and online change games.
That's nowhere near the same ballpark as a mature adult that's played poker for over thirty years and does so regularly in casino poker rooms with other extreemly experienced mature players for significant sums.
So you really need to state what sort you are so you can get feedback from others like yourself. Then you'll be able to judge yourself and amounts accordingly.
Realistically, what others do or don't do really shouldn't colour your mindset. It's all about how seriously or at what level you intend and can afford to play at.
If I make or lose $50,000 , it means little to me. But for some, that could be crushingly horrific. And for others, it's pocket change.
So if you want to get useful input from those just like yourself, you can't omit basic facts about yourself and at least ballpark information as to your general income or annual funds remaining after expenses.
It's all relative.