If they can invest in other coins, why can't they buy bitcoin? It's not that they can't afford to buy bitcoin, they're simply greedy and think that bitcoin doesn't bring significant profits so they choose to invest in altcoins. But they need to be careful because not all altcoins will increase in price with bitcoin, the bull season is still very far away and many altcoins will continue to disappear before the bull season really comes.
When they invest money in cryptocurrency market, a first cryptocurrency they must invest in should be Bitcoin. It is even not enough, their biggest part of investment should be used to buy Bitcoin. The minority of their capital can be used to buy altcoins.
Because altcoins are more risky than Bitcoin and if an investor focuses on protecting capital first, they will not use most of capital for altcoins. Unfortunately in reality, most of investors are not interested in Bitcoin and they fall in love with altcoins. Most or all of their capital are for altcoins and with destiny of altcoins is likely dead, they lose most of their capital.
Even if you spend money on potential altcoins, there are no guarantees, so don't count on free coins from a bounty campaign. Things have changed a lot, free coins from bounty campaigns are trash these days. Holding on for long periods of time is pointless.
Potential altcoins is a very promising term to attract altcoin investors but with each bear market, many potential altcoins die. We will see more potential altcoins in 2024 and 2025 but in 2026 and 2027, most of them will die again like previous cycles.