For me, it is enough for Bitcoin to be legally accepted as a payment method. It doesn't have to be a legal tender to perform its function. If countries recognize Bitcoin as a currency, that would already be enough.
For Bitcoin to become a legal tender is a long shot, and could even just be considered as an extra mile. Bitcoin doesn't have to be a legal tender for businesses and customers to accept it as payment. I think it is enough catalyst for Bitcoin's adoption rate for a government to declare it as an acceptable currency.
Compared to other countries that are banning bitcoins for their citizens and take action whenever they find someone who actually holding it, I rather just accept bitcoins as a payment method as well than live in a world where I can't even own a bitcoin cause of the regulations. so it's convenient to have local exchanges as well so that you can rely on everything you want to buy bitcoins and also use it every time you want to sell some of your bitcoins, I'm ok with this and I'm telling you this is a big leap and a huge success for bitcoins that we have reach this level nowadays.