Some believe that, you can perfectly work and just buy coins in free time and HODL but if you really want to make the best of the opportunities that crypto offers and you really want to get as rich as possible, you will want to have enough time to review/analyze coins, read, watch youtube videos, open accounts in different exchanges, move your capital to whatever offers you more value, reinvest earnings in coins that offer the best value for your money as possible. All this requires time, believe me, I see my friends working and trying to invest in crypto and they are stressed because they see the amazing opportunities at the moment but do not have time because they have to work, they prefer to miss the opportunity of their lifetimes for a job.