I suppose that's good enough for small to medium amounts. It would be quite hard for someone to create an address that they own that has the same first and last 5 characters. But if they were sophisticated and had your extended public key for some reason (like you had given it to an exchange you buy from), it is possible.

Also, not all wallets are like that. Smaller hardware wallets or software wallets with poor UI sometimes scroll the whole address, which is pretty annoying.