Adoption is well underway for Kaspa. Marathon Mining (MARA) announced last month that have been mining Kaspa with 30 peta hash and will have another 30 petahash aimed at Kaspa by years end. Many OG Bitcoiners are not happy about this. Kaspa is the real deal and Marathon mining knows this too.
Merchant adoption is not great. Black market merchants are unlikely to switch from Monero unless Kaspa offers them transactional privacy. Support for kaspa in P2P trading software such as Haveno or BasicSwap would help.
https://haveno.exchange/https://basicswapdex.com/Privacy coins are not worth it at all. It just brings down extra scrutiny and regulation. Look at what Binance and Kraken did to Monero. They caved into regulatory pressure and de-listed it. The price of Monero hasn't moved in years.