They are both for me and valuable at the same time. It it really an asset but because people are accepting it as a form of payment therefore it is a currency.
Yes the answers to this question is bitcoins can be asset and currency, actually depending on the users of bitcoins what will be done with bitcoins, although the main purpose of bitcoins is currency doesn't mean it is must. Because Bitcoin is based on the community they are free to consider bitcoins as an asset or currency, that is uniqueness of bitcoins everyone can be free to participate giving their opinions about the bitcoins.
You are wrong because the main reason why satoshi nakamoto created bitcoin is he want to make a great asset that will fight the inflation and that is bitcoin. I agree to you that it is up to the person on how is he going to treat bitcoin but for me it is more on an asset that needs to be kept for long term with care because if you don't put any care in holding it for long then you can forget the important information about your bitcoin.