Bitcoin is the first platform for all existing platforms. Bitcoin may be old and weak, but it has what the children don't have. Large communities and trust from them are what Bitcoin is. All traders and investors know Bitcoin and must use it if they want to trade.
I took it a step further and said Bitcoin is an idea of freedom. It represents our inner desire to break free from our financial shackles. I know people living in nice countries won't relate to that but a lot of us do.
Most people only think of BTC when we say Bitcoin and I understand why. It is old but gold, not weak. The misconception there is that people think bitcoin is actually prioritizing speed. No, it is prioritizing decentralization. Speed will come later. Lightning will make it happen but its still unable as of now.