Not that really.A lot of coins can be use to.There are different alternative currencies that offers opportunity for beginners to trade with than bitcoins.
While it's true that you can theoretically start anywhere, Bitcoin is the perfect starting point because of its wide availability along with plenty of resources. You can stick with tried and tested wallets and exchanges, for example, which may not be applicable to some obscure coins.
If you want to learn about cryptos by actually experiencing using it, Bitcoin is the way to go. You can branch out slowly after that because pretty much every coin comes with a BTC pair anyway, but not vice versa.