Personally, I would not risk any money which I need in the near future, no matter how good the outcome might seem. Do not think about investing with money that you need for something else. Especially something important like sending your children to school.
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Yeah, but if you are responsible you will have always emergency funds just in case.
People who do this must think that they can't guarantee 100% that their investment for cryptocurrencies that will be used in the future is safe, no one knows where are we going, pure speculation.
So, they must accept the risk of investing.
Definitely crypto investing is for long term, and it could be good as well for future education of our children. Nevertheless, as you have said, don't put everything in one basket.
It's good to have bitcoin investment, but at least you have plan B or even plan C if everything doesn't work well, just like what we are having right now, a bear market. So for sure not the right time to withdraw if your child is going to school this year. At least have some reserved fund and then step aside money for our crypto investment.