Short answer: there’s no single “best” bank for every young man — it depends on what you value most (digital banking, low fees, access to student/first‑job loans, card/discount perks, or the biggest branch/ATM network). That said, three banks stand out for young customers in Sri Lanka right now:

• Commercial Bank — Vibe youth account: tailored for 18–35 year‑olds with higher interest on savings, discounted loan rates (education, personal, housing), instant small loans against balances, debit‑card offers and digital services. Good if you want loan concessions and rewards. (combank.lk)

• HNB (Hatton National Bank) — HNB Youth / HNB TEEN+: youth accounts that offer higher interest, free mobile/ internet banking, youth debit card features and preferential lending. Strong digital features and youth‑oriented perks. Good if you prioritize digital banking plus preferential loan options. (HNB.net)

• People’s Bank — YES youth accounts: government bank product that provides competitive youth savings features, digital banking access and facilities for student/housing/business loans; useful if you want wide branch coverage and state‑bank stability. (peoplesbank.lk)

Other notes:

• Sampath Bank also runs popular children/young‑person schemes (Pubudu) and incentives for savings; worth considering for family/child saving plans. (businesstoday.lk)
• If you prioritize highest interest on small balances, low minimum opening deposit, or frequent debit‑card discounts, compare the youth account rates and fee schedules (ATM/debit card fees, account maintenance, e‑banking costs) before choosing.
• Practical checklist: choose the bank that (1) has good mobile/internet banking, (2) offers youth/first‑job loan concessions you might need, (3) has convenient branches/ATMs where you live, and (4) has low fees or useful card discounts.

If you want, I can:

• compare the current youth‑account interest rates, minimum deposits and fees for 3–4 specific banks and summarize which is cheapest/most feature‑rich (I’ll look up the latest product pages and fees).