Yeh altcoins is safe for investment but there is one thing which would you set in mind that if you want investment in altcoin then you should choose the top 10 altcoins of CoinmarketCap.
Because they are trusted and real his team are real not fraud those reason put the project in list of top coins of CoinmarketCap .
But if you buy rather than that then there will be 99% chance of fraud so be careful
I agree with you because If I was to invest in Altcoins right now, I would most definitely invest in the top Altcoins which I already have a guarantee on that will or can recover over the next months or few years. wouldn't want to take a gamble on new Alts that I don't know the true potential yet.