There are many ways to buy Bitcoin/Monero without ID (e.g. I work remotely for crypto and exchange to cash to pay for food and rent, since I can’t get a bank account). Cash in person/cash by mail (LocalMonero.co, Bisq.network, HodlHodl.com), Bitcoin ATMs (CoinATMRadar.com), vouchers (Azte.co), gift cards (Redeeem.com), jobs (Microlancer.io, Reddit.com/r/MoneroMarket) or local tech/libertarian/crypto meetups are some options.
I earn less than $1000/month in Bitcoin/Monero, which I withdraw to cash to pay for food and rent, which are necessary living costs. This is much lower than the $10k limit you described. I can’t get a bank account anyway and use cash for P2P trades (Bitcoin ATMs, cash in person, cash by mail).