Wallet address rarely shared among multiple user though, unless you use custodial service.
I think dkbit98 meant wallet addresses can be
paid to by multiple users. Although not recommended, it's not uncommon to ask different people to pay to the same address. I even see it on Bitcointalk for raffles or paying back loans, I've seen Bitpay do it, and I've seen instant exchangers reuse addresses.
Yes, and I even know some cases with multiple members of one family are using one bitcoin address, or some company is using only one addresses for accepting payments or donations.
I can see individual and group who trust each other/only accept Bitcoin only use single Bitcoin address. However, it's hard to believe big company like BitPay reuse same address. I can't imagine the pain when user make mistake (under pay, over pay, etc.).