It's not that surprising. If you ask the normies, they also love vemno and revolut. Custodial lightning is only slightly worse.
nostr:nevent1qqs09jjgnjfu5ydlmh2ukafnu5mlm7m094vsxlut8375y29gdfc69scppemhxue69uhkummn9ekx7mp0qgs9wl0qdh8pvzsr0ytr5jahk6qtu0s2pcwx3hnwdw5vqyf5k3qxfhgrqsqqqqqpwwcjld 

 They love venmo because it’s an excellent experience. Venmo and cash app is the bare minimum required