Do whatever you want with your money. Maybe you'll be lucky. Maybe not. But there's many other ways to strike luck throwing money around.
Angels should be trying to do about 100 deals to break even. Seeds roughly 50-60 deals VC's 30 PEG 5-10
Angels who write 10k checks @ 100 deals JUST to break even extremely tough. Deal sourcing is so hard.
Anyone who thinks they can get by w/ < 100 as an Angel is largely fooling themselves. New VC's fall into this trap regularly. The pro's know the numbers and the pattern matching.
Fool's money is fool's money if you jumped too far w/o knowing what the pool is made of, so at least learn what the primary patterns are before you jump too deep.
Angel.co has a great article because there's enough data now to make some insights[0]. TL;DR; any credible deal - get in on it.
But it needs to be law of large numbers, so don't start until you can support 100/60/30/5 deals for your size. No matter how good the idea/team sounds at the angel level, it's likely to fail. YC still has a 50% failure rate >5 years. Arguably they're the 'great filter'.
I'm not saying that if you can get it from an Angel willing to part with their money you should, but most angels get burned out / burned pretty fast. They should realize that most likely they'll be throwing away their money and never see a return. If they still want to give it to you, then go for it. But there are other ways.
Personally, getting it from customers is the best form of capital. You're actually validating your business and building something of value.