In the US we got Coinbase and it is a lot stricter than coinjar. Coinbase requires social security and home address for proof as part of registration to exchange cash for bitcoin. I do not have an account there simply because I do not have a permanent home yet. Once my living conditions settles down I will likely setup an account there. I am astonish now that BTC is at $10,000. I am looking instead on LTC as I can get more of that coin on a cost basis. Then exchange LTC for other cryptos. Coinbase lets you trade cash for either BTC, LTC, or Doge.
RE: Are you new to Bitcoin and want to know how to buy it? Well please watch my guide!