No way, because if the 0.002 BTC that I spend today ends up being worth $100 next week, next month or next year, I'd be very upset.
Not next week or next month because your 0.002 is only too little even if the price increase or pumps a bit but next year or two , there is a possibility that your 0.002 could already worth 100 usd . in the meantime if you think your bitcoins is too valueable for you then why cant you just use other cryptos to be able to buy lottery tickets ? But there is still a few problem that you can face . what if the site only accepts btc ? And what if there are no sites yet that sell lottery tickets for crypto payment ?