If Bitcoin didn't have fractions or sats I don't think that it's adoption will be as fast as it's going now, a lot of people won't afford to hold 1 Bitcoin and it will surely affect its value because demand will be very low. Almost everybody can hold some fractions of Bitcoin in Satoshi, the amount that you hold determines the value in your possession. The fractions of your Bitcoin remains what it is in the Blockchain, what changes is the value, it can either dip or rally.
And that's why many are misled thinking that if someone talks to them about investing in Bitcoin, they think that they need to hold 1 whole of it but they're wrong. All they need is to buy any amount they're able to and they can hold it for as long as they can.
Many newbies will not understand this, even when they buy in sats they will panic if they see the value decreasing, proper knowledge is important.
That's a typical beginner reaction. We all have been through that experience and that's why we're here to tell them that every correction and sudden dumps are pretty normal.