Last year I met 4 people under 25 who each respectively built $1m+ businesses. One guy started by flipping video games. The other was a programmer who did $300k

Last year I met 4 people under 25 who each respectively built $1m+ businesses. One guy started by flipping video games. The other was a programmer who did $300k+ revenue within a few months of starting his Amazon business. Another built an 8 figure business within 2 years making software for Amazon sellers. All of them bootstrapped their businesses. The first 3 were Amazon seller product businesses. It's possible and maybe even easier now than before.