There can be as many /32s in IPv6 as devices on the IPv4 internet.

RIPE hands out a /29 to any member without any requirements. For anything beyond a /29 you need to prove that you actually need it, but /29s they hand out like candies. As a LIR you can then lease out /32s. And when you run out of space to lease, request more space.

I know a guy with 15x /29s.

I actually find this scary too, but I mean, it’s /29s, not /8s.

It is quite expensive to be a full member of RIPE though. Most people with smaller requirements can go through a sponsoring LIR to get PI space (like a /48).