Decided to buy $25 of Bitcoin every week, for the rest of my life

It’s not a lot of money, and I’m going to increase it when I have a better income but I’ve been thinking about this a lot. I honestly think Bitcoin will continue to grow and instead of meticulously buying the dips and HODLing, I’m going to treat it like a mutual fund or an index fund because I think the curve will keep climbing over the course of decades. Does anyone see something I don’t and think this is a bad idea?