How about I wish we knew how to buy bitcoin when we were 13!
how did you learn about bitcoins?
2 days ago I went to a friend's house and he explained the concept of cryptocurrency
Better late than never! at least now you learned about cryptocurrencies. Anyway at the age of 13 i doubt how much you could have invested in it.
We have a lot of money to invest.
It's okay that you didn't know about cryptocurrency at age thirteen. It won't help you to dwell on that now though. It's best to just make good investing decisions now that you are aware of it.