Bitcoin is for everyone
If you hodl one, it is yours to sell or decide not sell
But the saying as been that "if you can't hodl in crypto, you can't be rich in crypto".
Exactly what you said is correct because from this statement i understand that bitcoin richness come from how long you hold it, when you buy bitcoin in 2018 and keep it till now you will make gain seriously, those billionaire's that are into cryptocurrency today make their money from long investment