The huge amount of supplies may not really be the problem but the potentials to the coin and the rate of demands including reliability that the coin doesn't become a ghost just as has emphasized.
Probably you can different between bitcoin and  those of your dogs and cats coins to your inlaw because he may have been wrongly influenced by the speculations and hyping of those shitcoins while his intentions could be of settling in the bitcoin.

Let me tell us all, most beginners who feel victim to had invested and lost their funds on investing in the AltCoins are sometimes redirected from their intended directions.
Some may have wanted to invest on bitcoin but due to their inexperiences and low knowledges, they gets converted to invest on the AltCoins just because there was no guidance and they lacks reliable source of research and consultations as the case maybe.