As other contributors have, said it's the quality of training that counts, not flying hours. Makes the FAA 1500hr. ATP requirement meaninless.
BEA now BA, put 250 hour cadets straight into the RHS of Tridents/B737/B757 with no problems. Most are now retired or Captains with a great safety record.
Again with the correct training, a relative of mine was a Lockheed TriStar Capt with 1800hr. total, flying into war zones.
Modern SOPs inhabit the acquisition of manual skills. Even BA prohibit manual handling (other than BA B744 crews) during route flying, mandating Auto-thrust at all times.