Volatility of cryptocurrency give many opportunities for traders. That is why the trading volumes on exchanges continue to grow. Now DeFi tools actively developing offering people new products and new opportunities.
The more popular becomes cryptocurrency the more demand in the tools like exchanges and wallets that support cryptocurrency wallets.
Every coin needs to have ecosystem that support it.
Not sure if exchanges and wallets are called tools but to me tools have a different meaning, it can be charts, bots or something that are only minor and can enhance our trading and investing activity. Of course an exchange and a wallet is needed for those who are involved in crypto because where would they store their crypto? And where will they trade their crypto for cash or for other cryptos? I cant only understand what @altixz is talking about.
How is the liquidity related to a wallet? if that is exchange then maybe that is somehow related. Anyway, altcoins are now ready to take off, have you guys bought your favorite altcoins?